carbon copies

carbon copies 基本解释

复写本，副本( carbon copy的名词复数 )

carbon copies 用法和例句

1、Make three carbon copies of the letter.

把这信复制叁份。

2、When she had typed several letters, she went to a filing cabinet and filed carbon copies.

她打完了几封信后, 到文书柜把几份复写的信件去存档。

重点词汇

carbon n. [化学]碳；（一张）复写纸；[电]碳精棒[片，粉]，碳精电极；复写的副本 adj. 碳的；碳处理的

copies n. 打印份数, 复印份数；复制品；副本（copy的复数）