carbon copy复写: make carbon copies; duplicat ...的: 4次方是 The fourth power of 2 i ...副本: duplicate; repetition; copy; ...用复写纸复制的副本: carbon copy复写的付本: carbon copy下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:复写的副本，即可在微信中查询翻译
