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

• Political attacks work only if they find an echo with voters.
  政治攻击只有在选民中引起共鸣才会有作用。
• Missing join predicates, but only if a foreign key is defined.
  丢失连接谓词，只在定义了外键的情况下。
• 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。
• Use it only if you must have its features or if you want to contribute to Samba development.
  如果您一定要试用其功能或者想要帮助Samba开发，可以使用它。
• The placebo effect can be understood only if we acknowledge the unity of mind and body.
  只有我们承认身心一体，安慰剂效果才能被理解。
• But only if we ask the right questions.
  但我们必须要问到点子上。
• China can physically raise production, but that will sustain growth only if China can sell the extra products.
  中国可以提高产出，但是只有在中国能够卖出额外产出的情况下，这种增长才是可持续的。
• 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。
• 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。
• 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。