fact of life

1. 生活中的嚴酷現實
   It is a fact of life and you must face it.

   這是嚴酷的現實，你必須面對它。

in fact

1. 事實上
   I think so; in fact, I am quite sure.

   我想如此，事實上我十分相信如此。

the facts of life

1. 性知識
   At what age should children be told the facts of life?

   孩子們應該在什麼年齡了解有關性的常識？

• before (or after) the fact
  Law  before (or after) the committing of a crime.
• a fact of life
  something that must be accepted, even if unpalatable.
• the facts of life
  information about sexual matters.
• in (point of) fact
  in reality.