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n. 库存书籍目录；重版书；存书\\nvt. 列入重版目录\\nadj. 列入重印书目的；库存书的
🗣️ 情景例句
I never met before.
我从未谋面过的人。
While we were having breakfast,John was talking on the telephone.
当我们正在吃早餐时，约翰正在打电话。
it would take about 700 years for half of us to die,
那么我们当中的一半人过700年才会死去，