only if

英 [ˈəʊnli ɪf]

美 [ˈoʊnli ɪf]

conj.  只有当

英英释义

adv

• never except when
  1. call me only if your cold gets worse
  Synonym:onlyonly when

双语例句

• But only if we ask the right questions.
  但我们必须要问到点子上。
• One can grasp a foreign language only if he studies hard.
  唯有努力学习，才能掌握外语。
• Remember that the type is defined only if you use a location in the grammar!
  记住，只有当您在文法中使用位置时才会定义类型。
• Syria will attend only if the negotiations deal with issues of substance.
  只有在谈判涉及重大问题时叙利亚才会参加。
• A partition is locked only if a reference is found.
  只有发现了引用，分区才锁定。
• This ensures that you save the new Hotel only if it doesn't already exist.
  这确保了只在新Hotel还不存在时才保存它。
• I'll do that, but only if we set a few rules.
  我可以干，但我们得定几条规矩。
• They can work more effectively only if the XOL package or other binary XML schema is applied.
  如果应用了XOL包或其它二进制XML模式，这些标准会更高效。
• Marty finally agreed, but only if Fred would go there with him to give him courage.
  马蒂最终同意了，但是要求佛瑞德和他一起去，给他鼓气。
• The latter will work only if you are on the same network as the WPAR manager.
  仅当您处在与WPAR管理器相同的网络中时，后面一种方法才能正常工作。