单词：
1.listen听（表动作）
listen to ……听…
listen to music
hear 听（表结果）
hear sb do sth听到某人做了某事
hear sb doing sth 听到某人正在做某事。
2.key钥匙
the key to my car 我的小汽车钥匙
the key to the back door后门钥匙
延伸：
the answer to the question
问题答案
the way to the park去公园的路
the ticket to beijing去北京的票
3.enjoy喜欢
enjoy oneself=have fun=have
a good time玩的开心
enjoy doing sth喜欢做某事
enjoy oneself doing sth开心做某事
注意：enjoy 后只跟doing sth
eg:I always enjoy myself
he enjoys painting
he enjoyed himself playing
football this morning
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