拘留的英文：
detain
keep someone in custody

参考例句：

The assassin was hustled to safekeeping.
凶手迅即被押走，予以保护性拘留。

The detainees at Guantanamo Bay are being treated humanely, in conditions consistent with the Geneva Convention.
关押在关塔纳莫湾的拘留者受到人道待遇，符合日内瓦公约的要求。

political detainee
因政治被拘留者；政治拘留犯

The act of interning or confining,especially in wartime.
拘留特指战争期间拘留或禁闭的行为

He was run in for drunk and disorderly behaviour.
他因酗酒滋事而被拘留.

He was run in for being in possession of drugs.
他因藏有毒品而被拘留。

He was run in for speeding.
他因超速行车而被拘留。

To confine,especially in wartime.
拘留，特别是在战争时期

She was held in custody pending trial.
她被拘留候审。

held the suspect for questioning.
拘留嫌疑犯以待审讯

detain是什么意思：
v. 扣留，扣押；耽搁，留住，阻留

The police have detained two men for questioning at the police station.
警方拘留了两个人在警察局盘问。

The police detained the man to make further inquiries.
警察拘留了那个人以作进一步的审问。

The police detained the suspected thief for further questioning
警方羁留了盗窃嫌疑犯以作进一步审问。

keep是什么意思：
v. 保持，处于；继续，重复；使耽搁；抚养；履行
n. 生活费，生活必需品

That news will keep.
那个消息留待以后再宣布。

They keep a shop.
他们经营一家商店。

How are you keeping?
你最近还好吧？

someone是什么意思：
pron. 有人，某人
n. 重要人物，有名气的人

Someone has tampered with the accounts of the company.
有人篡改了公司的账目。

Someone has tampered with the electrical circuits.
有人乱动过电路。

Someone left this for you.
有人把这留给你。