Is anyone sitting here?/Is this seat taken?
這里有人坐嗎?
It's prohibited to carry any hazardous materials.
禁止攜帶危險物品.
Hazardous materials: 危險品
When does your passport expire?
請問您的護照什么時候過期?
Expire: 滿期,屆期;(期限)終止
My lease will expire on September 30th of this year.
我的租約今年九月三十日到期.
The toliets are occupied.
廁所有人.
Occupy: 占(時間,空間);占用;住
Reading occupies most of my free time.
閱讀占去了我空閑時間的大部分.
The bathroom is occupied.
浴室有人在用.