YY分类版83句~~ 动物：
77：非法捕杀导致某些动物的灭亡，生物多样性也会损失。 Illegal hunting leads to extinction of some species and the loss of biodiversity.
78：动物实验有时候不能够检验出药物的不良副作用。
Animal experiments fail to detect the undesirable side effects of drugs. 城市VS农村：
7农村的失业问题在某种程度上可以通过城乡转移解决。
Unemployment in rural areas can be addressed partially by the rural-to-urban shift.
农村失业问题的主要原因是缺少基础建设和政府资助，这个问题在某种程度可以通过城乡转移解决。
The lack of infrastructure and government funding in rural areas is the main cause of unemployment, which can be addressed partially by the rural-to-urban shift. （lack of一般不充当表语）
16 : 未来几十年我们很难保护植物多样性
We will find it difficult to preserve biodiversity in the coming decades. 除非当地政府减少城市扩张对植物的影响，否则在未来几十年里我们会发现保护物种多样性很困难。
Unless local authorities reduce the impact of city expansion on vegetation, we will find it difficult to preserve biodiversity in the coming decades. 52：建造住宅楼有助于解决城市的拥挤问题。
Building apartment blocks helps solve overcrowding in cities.
住宅楼由于其能最大限度地利用土地和空间，所以有助于解决城市的拥挤问题。
Apartment blocks, which make the most of land and space, help solve overcrowding in cities.
59：在大城市有一些贫困的社区。
There are some economically deprived communities in large cities. 70：乡村地区给人们提供机会去远离现代生活的压力和噪音。 Rural areas provide people with opportunities to escape pressure and noises of modern life.
乡村地区对人们的健康有益，因为它给人们提供机会去远离现代生活的压力和噪音。
Rural areas are beneficial to people's health, providing people with opportunities to escape pressure and noises of modern life. 犯罪：
22 严格的惩罚是减少犯罪率的有效手段
Stiff punishment is an effective method to reduce crime.
严厉的处罚是减少犯罪的有效方法，因为犯罪者害怕被抓而不太可能犯罪。
It is suggested that stiff punishment is an effective method to reduce