“必要的”造句

他說：“我從未故意將任何病人置于不必要的風險境地?！?br/>"I have never knowingly exposed any patient to needless risks," he said.

為什么我們要為酒吧和賓館不必要的暖氣開支買單呢？
Why do we pay to overheat pubs and hotels?

找股票經(jīng)紀人之前，先要做好必要的準備工作。
Before you go near a stockbroker, do your homework.

• #必要的