缺乏某物
某人不在时
In his absence I looked to see what was on his desk.他不在时，我看了看他桌上有什么东西。
In his absence I looked to see what was on his desk.
他不在时，我看了看他桌上有什么东西。
(proverb)you feel more affection for those you love when parted from them
(谚)小别胜新婚
failure to concentrate on or remember what one is doing
走神，心不在焉