介绍:
hair 毛发，头发
Most people will only think of the hair on our head. When the world hair is mentioned. In fact, some animals and plants also have hair.
A horrible scene may make a person's hair stand on end. But a courageous person will not turn a hair, even though he is in face of danger.
Sometimes ，a friend of yours may be so angry that he may act foolishly. T hen you had better give him this advice：“Keep your hair on！”
提起hair这个词，许多人只会想到我们的头发，其实一些动植物也有hair（毛，茸毛）的。
可怕的景象会令人毛骨悚然（make one's hair stand on end），但是一个勇敢的人，纵然是面对危险，也不会有丝毫畏惧（will not turn a hair）。
有时候有的朋友可能生气，以致做出蠢事来，那么你最好这样劝告他：“别发脾气”（keep your hair on）。
