abbreviation for cubic centimetre

a 750cc motorcycle 排量为750立方厘米的摩托车

abbreviation for carbon copy : written at the end of a business letter or in an email before the names of the people who will receive a copy

to send a copy of a business letter or an email to someone

I hate it when people cc me on emails that have nothing to do with me. 我讨厌别人把与我不相干的电子邮件抄送给我。