重要

once

/wʌns/📚 300 5雅思中考高考

If something happens once, it happens one time only. ^一次

I met Miquela once, briefly.
我见过蜜凯拉一次，时间很短。

The water is fine once you're in!
一旦你进入里面，水就很好喝了！

He only did it the once.
他只这么做过一次。

once 出现在下面的课文中（提供视频、音频及笔记等可系统性学习）: Lesson 32 Shopping made easy once 副词: 曾经，以前; Lesson 099&100 Ow!; Lesson 105&106 Full of mistakes; Lesson 6 Percy Buttons; Lesson 19 Sold out; Lesson 28 No parking

单词造句:

网友用“Once”造句精选: Your body, like any other machine, needs a full service once in a while. 你的身体就像其他机器一样，偶尔也需要一次全面保养。; Remove from the heat, add the parsley, toss and serve at once. 从火上端下来，加入香芹，搅拌后立刻上桌。; You can't be doing two things at once. 你不能同时做两件事。; Amy picked up the hairbrush and brushed her hair once more. 艾米拿起梳子，又梳了一遍头发。; We have to resolve this matter once and for all. 我们必须彻底解决这件事情。; Once or twice she had caught a flash of interest in William's eyes. 有一两次，她捕捉到威廉眼中一闪的关注。; I've only been there once. 我只去过那里一次。; I have to go at once. 我得马上走。

关联词one/wʌn/pron. 任何人；一个人

近义词twice/twaɪs/adv. 两倍；两次

词组	含义	例句
at once	立刻，现在，马上：表示需要立即采取行动或完成某事；	Tell the doctor to come at once. She is having a baby.^{告诉医生立刻过来。她正在生孩子。}
at once	同时，同时进行	Can you pat your head and rub your belly at once? He tried to eat four cookies at once.^{你能同时拍头和搓肚子吗？他试图一次吃四块饼干。}