when necessary

基本解释

• 在必要的时候

英汉例句

双语例句

• I told my students my new telephone number so that all of them called me when necessary.
  我把新的电话号码告诉了学生，因此，必要时他们都给我打了电话。
• This is not primarily the task of arms, though we will defend ourselves and our friends by force of arms when necessary.
  这项任务并非主要由军队来承担，尽管我们会在必要的时候依靠军队来保护我们自己和我们的朋友。
• She writes about herself and her pubescent, precocious, and, when necessary, cunning behavior with the same sobriety she uses to describe everything else.
  她描写她本人，她的早熟 ，青春期的困惑，而且在必要的时候，她利用同样节制的狡猾行为去描写所有别的事情。

原声例句

• The law established the idea that the government could control industries, when necessary,for the public good.
• Have we at least found something interesting,necessary, unique to death when we say,Nobody can die my death for me.
  我们是否至少找到一些有趣，必要，独特的东西，当我们说“没有人能代替我死亡。
  耶鲁公开课 - 死亡课程节选
• But sometimes it's necessary when you have really big course load
  但是有时候课程量很大的时候这是必要的，
  开放式的课程？ - SpeakingMax英语口语达人

权威例句

• The authorities would act swiftly, and with force when necessary, to quell any such protests.
  ECONOMIST: Uzbekistan's president is returned to office, surprise

• when necessary更多例句

词组短语

短语

• Except When Absolutely Necessary 除非必须
• Only when absolutely necessary 仅仅在绝对必要的时候
• Maintain documentation when necessary 维护所需的文件
• make donations when necessary 在必要的时候捐献
• Employment when necessary 自如就业

• when necessary更多词组