only if

英 [ˈəʊnli ɪf]

美 [ˈoʊnli ɪf]

conj. 只有当

英英释义

adv

But only if you bring in the right people.
但前提是要招对人。
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。
One can grasp a foreign language only if he studies hard.
唯有努力学习，才能掌握外语。
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。
The meat market can continue only if it is radically overhauled to conform with strict European standards.
肉类市场只有经过彻底的大检查，严格遵守欧洲标准，才能继续营业。
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。
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。
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。
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。
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。