If
[ if ]
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conj. 如果，倘若;即使;〈口〉是否;假设;
n. 条件，设想;
📝 例句
Unless and if...not can often be used in the same way
unless和if...not的用法常常是相同的
In "if I were you" the verb "were" is in the subjunctive.
在"if I were you"中,"were"是虚拟语气动词。
We'll go even if it rains.
即使下雨我们也要去。
He will come if you invite him.
如果你请他,他会来的。
elseencountered without matching if
else没有匹配的if
✅ 同义词
📖 牛津释义
f
conj
1 on condition that; supposing 假如; 如果; 倘若; 要是.
(a) (used with the present and present perfect tenses for highly predictable situations 与现在时态和现在完成时态连用表示预料到的情况)
I'll only stay if you offer me more money. 假若你肯多给钱, 我就留下.
If you have finished eating you may leave the table. 你要是吃完了, 就可以离席了.
If (it is) necessary I will come at 6. 如有必要, 我6点钟来.
You can stay to dinner if you like. 你愿意的话, 可以留下一起吃饭.
If anyone calls tell them I'm not at home. 有人来电话, 就说我不在家.
(fml 文) If the patient should vomit, turn him over with his head to the side. 倘若病人要呕吐, 就帮他翻过身来, 头侧向一边.
(b) (used with a past tense for imaginary situations 与过去时态连用表示假想的情况)
If you learned to type you would easily find a job. 假使你学过打字, 就容易找工作了.
If he were here I could explain to him myself. 要是他在这里, 我就可以亲自向他解释了.
If I was a man they would have given me the job. 我要是男的, 这份工作就准给我了.
Would she tell us the truth if we asked her? 我们问她, 她会告诉我们实情麽?
If you liked (ie With your approval) I could ask my brother to look at your car. 你要同意的话, 我可以叫我弟弟来给你检查一下汽车.
They would have been here by now if they'd caught the early train.他们要是赶上了早班火车, 现在都该到这儿了.
I wouldn't have believed it possible, if I hadn't seen it happen. 要不是亲眼目睹, 我决不会相信能有这种事. =>Usage at unless 用法见unless.
2 when(ever) 无论何时; 当: If metal gets hot it expands. 金属遇热则膨胀.
She glares at me if I go near her desk. 我一走近她的办公桌, 她就瞪我.
3 (used with will and would as the first part of a sentence when making a polite request 与will和would连用, 作复合句的前部, 用以提出请求显得客气)
If you will sit down for a few moments (ie Please sit down and) I'll tell the manager you're here. 请稍坐, 我这就通知经理说您来了.
If you would care to leave your name, we'll get in touch as soon as possible. 请留下您的名字, 我们尽快和您联系.
4 (used after ask, know, find out, wonder, etc to introduce alternatives 用於ask、 know、 find out、 wonder等之後, 以引导含不同可能性的情况) whether 是否
Do you know if he's married? 他结婚没结婚, 你知道吗?
I wonder if I should wear a hat. 我不知道该不该戴帽子.
He couldn't tell if she was laughing or crying. 他弄不清她是笑还是哭.
Listen to the tune see if you can remember the words. 请听这曲子--看你能不能想得起歌词来.
5 (used after vs or adjs expressing feelings 用於表示情感的动词或形容词之後)
I am sorry if I'm disturbing you. 很抱歉, 打搅您了.
I'd be grateful if you would keep it a secret. 如予保密, 无任感激.
Do you mind if I switch the radio off? 我可以关掉收音机吗?
6 (also even if) (used when admitting that sth may be true or may happen 用於承认某事可能属实或可能发生) although 即使; 纵然; 虽然
If he said that, he didn't expect you to take it personally. 即使他是那样说的, 他也并不是针对你个人而言的.
Even if you saw him pick up the money, you can't be sure he stole it. 就算你看见是他拾起的钱, 你也不能肯定钱就是他偷的.
7 (used before an adj to introduce a contrast 用於形容词之前, 以引导一对比情况) although also 虽然; 尽管
It was thoughtless if well-meaning. 用意虽好, 考虑欠周.
He's a real gentleman, if a little pompous at times. 他可是个正人君子, 虽然有时略显得傲慢了些.
8 (used to express surprise, astonishment, dismay, etc 用以表示意外、 惊奇、 沮丧等)
If it isn't my old friend Bob Thomson w...
🎯 考研助记
i(水)+f(树叶):如果树叶得水就生长- 如果
🔁 扩展释义
*[if]conj. 如果, 是否, 无论何时, 假设, 即使n. 条件【计】 DOS批处理命令:根据所测试的条件决定是否执行另一条命令相关词组: If weather permits... if only if so as if if at all if it had not been for if I were you
📖 同为「计算机」词汇
查看全部计算机词汇 ›🗣️ 情景例句
In my opinion, we should buy the IBM PC 586.
我认为我们应该买IBM586微机。
Do you remember one afternoon ten years ago when I came to your house and borrowed a necklace of yours? Pierre, my husband, was working in a government office. We'd been invited to a ball at the palace so I needed to borrow some jewellery.
10年前的一个下午，我到你家借过一条项链，你还记得吗？我的丈夫比尔当时在政府的一个部门工作。我们被邀请参加一个宫庭舞会，所以我需要借一点珠宝首饰。
But I don't understand. You returned the necklace to me the next afternoon. I remember very well.
不过，我还不懂。我记得很清楚，你们第二天下午就把项链还给我了。