once in a while

简明英汉词典

once in a while

adv.

偶尔

现代英汉词典

while

[waIl; (?@) hwaIl]

n.

一会儿

a long while

好长一会儿

A short while ago, however, he became a busdriver and he has not regretted it.

可是,不久前他当了一名公共汽车驾驶员,而且他不后悔。

习惯用语

once in a while

有时；偶而

worth one's while

值得；有价值

词性变化

while

conj.

(1)…的时候

While in Vienna he studied music.

他在维也纳时学习音乐。

While he was eating, I asked him to lend me $2.

当他正在吃饭时,我请他借给我二英镑。

While two detectives were keeping guard at the door, two others opened the parcel.

这时两个侦探把着门,另外两个打开包裹。

While I read, she sang.

我看书时，她在唱歌。

I met her while I was at school.

当我在学校的时候我遇见了她。

(2)虽然；但是

While I understand what you say, I can't agree with you.

虽然我理解你的意思，但我还是不同意。

You like tennis, while I'd rather read.

你爱打网球，但我爱看书。

(= whilst)

词性变化

while

vt.

whiled, whiling

（与away连用） 消磨；度过

They while away many afternoons on the beach.

他们在海滩消磨了许多个下午。

while

adv.

（前面与表示时间的词连用）在…时候

the summer while I was abroad

我出国的那个夏天

现代英汉综合大辞典

once

[wQns]

adv.

(1)一次

(2)曾经; 从前

(3)一旦; 一度

(4)[用于否定句]一次也(不); 完全(不)

(5)乘以一; (亲属间行辈上)小一辈; (程度上)相差无几

once a year

一年一次

a once powerful nation

曾很强盛的国家

a cousin once removed

堂[表]兄弟[姊妹]的孩子

If the facts once become known, he will be punished.

事实一旦公开, 他就要受到惩罚。

I couldn't once understand what he meant.

我完全不懂他的意思。

Once one is one.

一一得一。

词性变化

once

conj.

一旦, 每当

Once you begin you must continue.

你一旦开始, 便不可停下来。

n.

一次, 一回

Once is enough for me.

对我来说一次就够了。

adj.

从前的

a once friend

从前的一个朋友

继承用法

once-forbidden

adj.

一次禁戒的

once-through

n.

强制循环

习惯用语

all at once

突然; 同时

at once

立刻, 马上; 同时

every once in a while

[美]偶而

for this once (=for once, just for once)

就这一次; 破例一回

if once (=when once)

一旦

more than once

不止一次, 多次

not once

一次也不

once again

再一次

once and again

一再, 再三

once and away

一劳永逸; 限此一次; 断然, 爽快

once for all

一劳永逸; 永久地; 彻底地

once in a while

有时, 间或, 偶而

once more

再一次

once again

再一次

once or twice

一两次; 有时, 偶尔

once over lightly

从头到尾马马虎虎地

once too often

又(多了)一次

英汉船舶大词典

once in a while

adv.有时,不时地,偶而

英汉航海大词典

once in a while

adv.有时,不时地

英汉化学大词典

once in a while

adv.间或,偶而