■ birth

涉及分别的多人时，可以用复数。

• (the study) has been following several thousand twins since their births in 1994 and 1995.（这次调查）追踪了几千名双胞胎，从他们 1994 与 1995 年出生时起（参见 life, death 条）。

• comply
• compose
• composed
• comprise
• compromise
• comptroller
• computer
• concern
• concert
• condition
• conference
• confess
• confidence
• conflicted
• confront
• confront 与 face
• confuse
• congratulate
• congratulate
• congratulate 与 wish
• congratulations
• congress
• congressman
• connection
• conscientious