用复写纸复制的副本的英文

• carbon copy

• 用:    40分钟跑完全程 run the course in 4 ...
• 复写纸:    carbon
• 复制:    duplicate; reproduce; copy; ...
• 的:    4次方是 The fourth power of 2 i ...
• 副本:    duplicate; repetition; copy; ...