1. They listened carefully but heard nothing.2. Tigers have bright features and run very fast,and their bones are very hard, which can be used for medicine. All these account for the reason (why) that they are often hunted by human beings.3. 它的尾巴上端的毛发常被用以制作扇子或衣服。
1、They listen carefully, but did not hear。2、The tiger's fur pretty, to run quickly, the bones very hard, you can do, so often by the hunt.3、其上的尾羽常用来做扇子或衣服。