They are important for plants and animals that live in different parts of the world.
它们对生活在世界各地的植物和动物很重要。
They are beginning to realize that the world they live in is not always good and safe.
他们开始意识到自己所生活的世界并不总是美好和安全的。
Helpless individuals no longer believe that they can live safely in the world.
无助的人相信他们在这个世界不能够再安全的生存下去了。
应用推荐