括号的用法
　　括号用于隔开与中心意思相关不紧密的言语。
　　In New York (I’ve lived there all my life and ought to know), you have to have a license for a gun.
　　I thought I knew the poem by heart (boy, was I wrong!).
　　For a long time (too long as far as I’m concerned), women were thought to be inferior to men.
　　The first time I went driving (do you remember the day?), I was so scared.

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