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i f only if和有什么不一样?

teacher

母语人士的回答

Rebecca

Only if用于谈论某事发生所必需的条件。它的意思是not unless 。例如,“ Only if I pass this exam, can I get accepted into law school ”这句话意味着你必须通过这个考试才能进入法学院。请记住,当您使用Only if时,以下句子是倒置短语,因此动词在前!例: Only if the other party agrees can we sign the contract. (只有在对方同意的情况下才可以签这个合同。) 例子: Only if you wash the rice first can you reduce the starch amount. (你可以先洗米来减少淀粉的量。) I f也是有条件的,但建议一般可能性!例子: If I were a dog in my next life, I wouldn't have to work. (如果你下辈子是条狗,你就不用工作了。) 例子: If it rains tomorrow, I'm taking a taxi instead of walking. (如果明天下雨,我会乘出租车而不是步行。) if, and only if这个表达可能强调以下子句是一个家庭的故事。 Ex: If, and only if, she agrees, can we seal the deal. (只要她同意,我们就可以完成交易。) Ex: If, and only if, the groundhog sees its shadow, can we enjoy an early spring. (当土拨鼠看到他的影子时,我们可以享受早春。)

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12/24

通过测验完成表达式!

当且仅当他们可以在一定距离内拥有彼此,在他们可以控制的数量上。