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

• A NOT FENCED stored procedure is recommended only if you consider the code safe to execute.
  只有在您认为代码能够安全执行的情况下，才应该使用NOTFENCED存储过程。
• But only if we ask the right questions.
  但我们必须要问到点子上。
• A partition is locked only if a reference is found.
  只有发现了引用，分区才锁定。
• 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。
• 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。
• Don't help her out of pity, but only if you think she deserves it.
  不要因怜悯而帮助她，除非你认为她值得你帮助。
• 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。
• 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。
• This tip is useful only if you decide to support both javac and ECJ.
  如果决定同时支持javac与ECJ，这一提示将很有用。