Don't leave the tap running.

　　別把水龍頭開著白白流水。

　　You can ask for a chemical analysis of your tap water.

　　你可以要求給你的自來水做化學分析。

　　You'll be able to get a taxi outside the station.

　　在車站外可搭乘出租車。

　　I think the sensible thing would be to take a taxi home.

　　我想還是坐出租車回去的好。

　　She never took a taxi, even though she could afford to.

　　盡管她坐得起出租汽車，但她從未坐過。