[常用词块]
1．rare species稀有物种
2．care for them关心它们
3．take active measures采取积极的措施
4．protect the wildlife保护野生动物
5．prevent them from being hurt防止他们受到伤害
6．be polite and friendly to visitors对游客都很有礼貌和友好
7．on the edge of dying out在死亡的边缘
8．do something to change this situation做些什么来改变这种情况
9．in the southwest of China 在中国西南部
10．have the responsibility to do something有责任做某事
