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。
But only if we ask the right questions.
但我们必须要问到点子上。
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。
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。
The two sides will clash there only if Chelsea beat Sunderland in their quarter-final replay.
只有切尔西队在四分之一决赛的重赛中击败桑德兰队，双方才会交锋。
Syria will attend only if the negotiations deal with issues of substance.
只有在谈判涉及重大问题时叙利亚才会参加。
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。
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 medicine works only if taken for a long time.
此药久服方见功。
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。