only if

英 [ˈəʊnli ɪf]

美 [ˈoʊnli ɪf]

conj. 只有当

英英释义

adv

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。
One can grasp a foreign language only if he studies hard.
唯有努力学习，才能掌握外语。
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 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。
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。
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。
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。
But only if you bring in the right people.
但前提是要招对人。
You can make progress only if you are modest.
惟虚心乃能进步。
The medicine works only if taken for a long time.
此药久服方见功。