重点讲解：
1. show up 出现；露面；
It was getting late when she finally showed up.
天色已晚，她终于赶到了)Z#,iwq.E;VdZjvcN+Y。
2. prefer to do sth. 更喜欢；偏好；
It is commonly asserted that older people prefer to receive care from family members.
人们普遍确认，老年人更愿意由家人照顾ZN(Nxxv~-3O%!x。
3. eavesdrop on 偷听；窃听；
I don't like eavesdropping on people talking on the phone.
我不喜欢偷听人家打电话.%0.o7VC&-*.H!X+Hr。
4. rely on 依赖；依靠；
Many animals rely on concealment for protection.
许多动物靠藏匿自己来避害bZfGF0J0-qHXqr&qQ+。