Did you watch the football game between Manchester United and Arsenal last night?
昨晚你看了曼联对阿森纳的足球比赛吗?
A man cannot whistle and drink at he same time.
一心不能二用。
If you want to send a letter to an office abroad that is in a different time zone, you can send a fax, and it will be received even though the office is not open.