Blind carbon copy
US /blaɪnd ˈkɑːrbən ˈkɑːpi/
UK /blaɪnd ˈkɑːbən ˈkɒpi/
名词
密送, 密件抄送
a copy of an email sent to a recipient whose email address is not visible to other recipients of the message
示例:
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Always use blind carbon copy when sending emails to a large group of people to protect their privacy.
向大量人群发送电子邮件时，请务必使用密送以保护他们的隐私。
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I put all the recipients in BCC so they wouldn't see each other's addresses.
我把所有收件人都放在密送中，这样他们就看不到彼此的地址了。