only if

英 [ˈəʊnli ɪf]

美 [ˈoʊnli ɪf]

conj. 只有当

英英释义

adv

One can grasp a foreign language only if he studies hard.
唯有努力学习，才能掌握外语。
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。
The medicine works only if taken for a long time.
此药久服方见功。
The password is required to open the truststore only if you wish to add certificates to it.
仅当您要向信任存储添加证书时，您需要这个密码来打开信任存储。
Perhaps, but only if the state-owned company is willing to make some changes.
也许吧，但只有这家国有企业愿意做一些改变，才可能脱离困境。
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。
Money can buy happiness, but only if you spend it on someone else, researchers reported.
研究人员日前称，金钱可以买到快乐，但前提是你得把钱花在别人身上。
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。
Please make the changes only if no-one has modified the record since I read it.
请仅在从我读取该记录后没有人进行修改的情况下进行更改。