only if

英 [ˈəʊnli ɪf]

美 [ˈoʊnli ɪf]

conj. 只有当

英英释义

adv

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。
But only if we ask the right questions.
但我们必须要问到点子上。
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。
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。
But only if you bring in the right people.
但前提是要招对人。
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。
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。
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。
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。
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。