specimen; spectacle; spectacular; spectator; spectrum; speculate; spite; spy; suspect; suspicion; suspicious; introspect*; retrospect*
“-sper-/-spir-”: hope; breathe（呼吸；希望；生灵）→aspire; conspiracy; despair; expire; inspire; prosper; prosperity; prosperous; speed; spirit; spiritual
“-spond-”: pledge（保证，誓言，抵押）→correspond; correspondence; corresponding; respond; response; responsible; responsibility; sponsor; spouse; responsive*
“-stand-/-stanc-/-star-/-stab-/-state-/-stit-/-sist-”: stand; stay; set (up); place; establish（成型；保持；树立；构成）→constituent; circumstance; constitute; constant; destiny; destination; distance; establish; establishment; estate; instead; institute; institution; obstacle; rest; stability; stable; stadium; staff; stage; stall; stance; stand; standard; standpoint; state; statement; statesman; static; station; stationary; statistics; statistical; statue; status; statute; stay; steer; stem; still; stool; substance; substantial; substitute; superstitious; system; systematic; understand; withstand; prostitute*; status quo; // assist; assistant; consist; consistent; consistency; exist; existence; insist; instance; instant; persist; resist; resistance; resistant; transistor; reinstate*; restitution*; solstice*
“-stil-”: drop（下落）→distill; instill
“-stinc-/-sting-”: separate; quench（分离；熄灭；蛰）→distinct; distinction; distinguish; instinct; extinct; extinguish; stick; sticky; stimulate; sting; stitch
“-stor-”: stake（库存）→restaurant; restore; stock; store; storage
“-string-/-strain-/-strict-”: to bind; contract（捆紧；棒紧）→constrain; distress; district; prestige; restrain; restraint; restrict; strain; strength; stress; strict; string; strong
“-struc-/-stroy-”: pile up; erect; build（结构；建立）→construct; construction; destroy; destruction; industrial; industry; industrialize; infrastructure; instruct; instruction; instrument; obstruct; obstruction; strain; structure
“-sume-/-sum-”: take（拿；取；承担）→assume; assumption; assuming; consume; consumption; presumably; presume; resume
“-sul-/-sel-”: summon; gather（召集）→consult; counsel
“-sum-/-super-”: superior（超；圆满）→consummate
“-sure-/-sur-”: secure; make sure（确保；确信）→assure; assurance; ensure; insure; reassure; sure
“-tach-/-stake-”: stake（树桩；关键）→attach; attached; attack; detached; stake
“-tail-”: cut; limitation（减切）→tailor; detail; entail; retail; tailor
“-tain-/-ten-/-tent-/-tin-/-tact-/-teger-/-tang-”: hold // touch; reach（把握；接触，延伸）→contain; content; detain; entertain; maintain; maintenance; obtain; retain; retention; sustain; tenant; tennis; // attain; contact; contaminate; continent; continue; continual; continuous; entire; intact; integral; integrate; integrity; tactics; tangible*; continence*; countenance*; pertain*; pertinent*
“-tect-/-tech-”: workman; craftsmanship（工艺；技术）→architect; architecture; technical; technician; technique; technology
“-tege-/-tect-”: cover（覆盖）→detect; detective; detector; protect
“-temp-/-time-”: time（时间）→contemporary; temper; temperature; temperature; tempo; temporary; tide; extemporize*
“-tend-/-tent-/-tempt-”: extend; stretch; aim; strive for; try（弯曲；倾向；争；夺）→attempt; attend; attention; attentive; inattention; attendance; contend; extend; extension; extensive; extent; intend; intense; intensity; intensive; intention; pretend; tempt; temptation; tend; tendency; tense; tension; tent; tentative; tone; intent*
“-term-”: end; limit（末端；结束）→determine; determination; term; terminal; terminate; terminus*; interminable*
“-terr-”: land（土地）→territory; terrain*; terrestrial*
“-testi-/-test-”: witness（证明；证据）→contest; protest; testify; testimony
“-text-”: weave; braid（编织；编织物）→context; pretext; text; textbook; textile; texture; tissue
“-theo-/-thu-”: god（神）→enthusiasm
“-tom-/-tomo-”: cutting（切；砍；剪）→atom; contemplate
“-tor-/tour”: direct; circle（指导；环绕）→attorney; tour; tournament*
“-tort-”: turn; twist（扭曲）→distort; retort; torch; torment; torture
“-tract-/-tire-/-drag-/-draught-/-dra-”: draw towards; pull（拖；拉；抽）→abstract; attract; attraction; attractive; contract; distract; extract; draft; draught; draw; retire; subtract; retreat; trace; track; tractor; trade; trademark; traffic; trail; train; trait; traitor; treat; treaty
“-tramp-”: stamp（踩）→track; tramp; trap; trip
“-trai-/-trea”: hand over（给出）→betray; traitor; treason
“-tribu-/-trib-”: give; assign（给予；呈交）→attribute; contribute; contribution; distribute; tribe; tribute
“-tric-/-trig-”: trifles; complexities（复杂）→intricate; intrigue; trick
“-triev-/-trouv”: find（找寻）→retrieve
“-triv-/-trop-”: trope（修辞）→contrive
“-trud-”: thrust（投；刺）→intrude; protrude*
“-tue-”: look at（照看）→intuition; intuitive; tuition
“-turb-”: commotion; confuse（扰乱；喧闹）→disturb; disturbance; perturb*
“-und-/-ound-”: overflow（流溢）→abound; abundant; abundance; abound; redundant; surround; undulating*
“-uni-”: one（一；统一）→onion; uniform; unify; unique; union; unit; unite; universal; universe; university; unitary*
“-use-/-ut-”: employ; use（使用；实用）→abuse; misuse; disuse; utility; utilize; usage; use; used; useful; usual; usually; utilize; utility; utensil*; usurp*; usurer*
“-vad-/-vas-”: go; leave（走；离开）→evade; evasion; invade; invasion; pervade*
“-vaga-”: wander（漫游；走动）→extravagance; extravagant
“-vapor-”: steam（蒸汽）→evaporate
“-vari-/-varu-”: changing（改变；变化）→invariable; variable; variation; variety; various; vary
“-vent-/-ven-”: come; arrive（到来；来临）→advent; adventure; avenue; convenient; convenience; convene; convention; conventional; event; intervene; invent; invention; inventory; prevent; revenue; venture; souvenir*
“-verb-”: word（言辞；话语）→adverb; verbal; nonverbal; verb; verbal
“-vert/-vers-/-viro-”: turn towards（转；扭）→adverse; reverse; converse; adverse*; advertise; anniversary; avert; averse; controversy; controversial; conversely; converse; conversation; convert; conversion; diverse; diversion; divorce; environment; inverse; invert; prose; reverse; universe;
universal; university; versatile; verse; version; versus; vertical; veer*; introvert*; perverse*; revert*; veranda*; averse*; diverge*
“-vesti-”: track; footstep（足迹）→investigate; vestige*
“-via-/-vey-”: way; road（路；途径）→convey; deviate; obvious; previous; trivial; way
“-vic/-vis-/-vid-/-view-”: something seen（看；视）→advise; advice; advisable; envisage; envy; evidence; evident; interview; invisible; provide; provided; provision; review; revise; supervise; survey; video; view; viewpoint; visa; visible; vision; visit; visitor; visual*; vista*; vigilant*; provident*
“-vid-/-vis-”: divide; separate; widow（分离）→devise; device; divide; dividend; individual; widow
“-vinc-/-vict-”: conquer; overcome;→convict; convince; conviction; province; revenge; victory; vengeance*; avenge*
“-viv-/-vit-/-vio-/-vig-/-verg-/-val-/-wor-/-war-”:（男性）①life; live（生命力）；②strength；strong;（力量）；③worth（价值）；④truth（真实；可靠）→verge; vegetarian; vegetation; vegetarian; revive; survival; survive; valid; validity; violate; violent; violence; vital; vivid; verify; very; virtue; virtual; vital; vivid; vitamin; viable*; vigorous; war; verdure*; vehemently;* valorous*; valiantly*; warrior*; // worth; worthwhile; worthy; // avail; available; equivalent; evaluate; evaluation; invalid; invaluable; prevail; prevalent; valid; valuable; value; valor*; invigorating*; inviolability*
“-voc-/-vok-/-call-”: to call (as witness)（呼喊）→advocate; provoke; call; council; evoke; provoke; recall; reconcile; vocabulary; vocal; vocation; voice; vowel; irrevocable*
“-voi-/-vui-/-vac-/-vit-”: empty; void; cease（空；停）→avoid; void; evacuate; inevitable; vacant; vacation; vacuum; vain; vanish; vanity; vast; void; waste; evacuate*; evanescent*
“-volv-/-volu-/velo-”: roll; wrap（卷；包裹）→develop; development; envelop; envelope; evolution; evolve; involve; revolt; revolution; revolutionary; revolve; volt; volume
“-vove-”: vow（誓言）→devote; vote
“-ward-”: observe; to decide after investigation（认知；观察）→awake; award; aware; reward; upward; toward; wait; wake; warn; watch
“-wit-/-wis-”: know（认知）→wise; wisdom; wit; witty; witness