only if

英 [ˈəʊnli ɪf]

美 [ˈoʊnli ɪf]

conj. 只有当

英英释义

adv

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。
But seriously, these tricks will work only if you have at least the basics of English.
但是，说真的，这些窍门要想发挥作用，至少要有基本的英语能力。
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。
Political attacks work only if they find an echo with voters.
政治攻击只有在选民中引起共鸣才会有作用。
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。
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。
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。
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。
A partition is locked only if a reference is found.
只有发现了引用，分区才锁定。