学习笔记：
hair：头发
例句：The horse has a fine coat of hair.
这匹马长了一身好毛。
eye：眼睛
例句：She has blue eyes.
她长着一双蓝眼睛。
ear：耳朵
例句：He gave the boy's ear a painful tweak.
他用力拧了一下那男孩的耳朵。
nose：鼻子
例句：He brushed away a fly from his nose
他赶走了鼻子上的苍蝇。
mouth：嘴
例句：He gave you the money in order to stop your mouth.
他给你那笔钱是为了堵住你的嘴。
