preparation何时用复数

回答
爱扬教育

2022-06-30

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当安排讲时用复数,当准备讲时不可数,当用于食物、药品和化妆品等时可数,可单可复。
preparation
n.准备;预备;准备工作;(医药、化妆品等)配制品,制剂
复数: preparations

扩展资料

  The third book in the series is currently in preparation.

  丛书的第三册现在正准备出版。

  The new textbook is in course of preparation.

  新的教科书正在准备之中。

  Was going to college a good preparation for your career?

  上大学是否为你的事业打下了良好基础?