"Detain" 和 "retain" 都有保留或扣留的意思，但它们的用法和含义略有不同。
"Detain" 通常指因法律、官方命令或其他正当理由而扣留或限制某人的行动自由。它常用于指被警方、政府机构或其他有权机构扣留的人。
例如：
- The police detained the suspect for questioning.
- He was detained at the airport for not having a valid passport.
"Retain" 则更常用于指保留或持有某物，而不是限制某人的行动自由。它可以指保留信息、物品、权利等。
例如：
- The company retains the right to reject any application.
- She retained all the documents for future reference.
因此，"detain" 更侧重于限制行动自由，而 "retain" 更侧重于保留或持有某物。
"Detain" and "retain" both mean to keep or withhold something, but they are used differently.
"Detain" usually refers to the act of keeping or restricting someone's freedom of movement by legal, official order, or other legitimate reason. It is often used to refer to someone being detained by the police, government agencies, or other authorized institutions.
For example:
- The police detained the suspect for questioning.
- He was detained at the airport for not having a valid passport.
"Retain" is more commonly used to mean keeping or holding onto something, rather than restricting someone's freedom of movement. It can refer to retaining information, items, rights, etc.
For example:
- The company retains the right to reject any application.
- She retained all the documents for future reference.
Therefore, "detain" focuses more on restricting freedom of movement, while "retain" focuses more on keeping or holding onto something.
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