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for + noun
This gift is for you.
这份礼物是给你的。
为了；用于
先理解核心含义，再看它在真实句子里的用法。
为了；用于
Used to show purpose, function, or intended use.
This gift is for you.
这份礼物是给你的。
朝向；朝某个方向。
Towards; in the direction of.
在时间或情况下朝向。
Leading towards in time or circumstance.
针对；意图属于。
Directed at; intended to belong to.
为了帮助、利益、满足、荣誉等(某人或某物)。
In order to help, benefit, gratify, honor etc. (someone or something).
I bought this gift for my mother.
我买了这份礼物给我妈妈。
She has been studying English for three years.
她学英语已经三年了。
He traded his old car for a new one.
他用旧车换了一辆新车。
This gift is for you.
这份礼物是给你的。
She has lived here for two years.
她在这里住了两年。
He went to the store for milk.
他去商店买牛奶。
Not this
I bought this gift to you.
Use this
I bought this gift for you.
在中文中，'to' 和 'for' 都可以表示目的，但在英语中，'for' 用于表示为某人或某事物的用途或目的。
Not this
He has been waiting since two hours.
Use this
He has been waiting for two hours.
中文中，'since' 和 'for' 都可以表示时间段，但在英语中，'for' 用于表示持续时间，而 'since' 用于表示起始时间点。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
例如
For example, he likes apples.
例如，他喜欢苹果。
待售
This house is for sale.
这栋房子待售。
免费
I got this ticket for free.
我免费得到了这张票。
永久地
He left the country for good.
他永久地离开了那个国家。
肯定
I will be there for sure.
我肯定会去那里。
一会儿
Please wait for a while.
请等一会儿。
例如
Many fruits, for example apples and bananas, are rich in vitamins.
许多水果，例如苹果和香蕉，富含维生素。
永久地
She decided to leave the city for good.
她决定永远离开这座城市。
为了...起见
He stopped smoking for the sake of his health.
为了健康起见，他戒烟了。
钟为谁鸣
For whom the bell tolls; it tolls for thee.
钟为谁而鸣；它为你而鸣。
为了钱的爱
For the love of money is the root of all evil.
贪财是万恶之源。
Use for naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
想象你伸出手，“for”是递给别人的动作，表示“给；为了”。
语域：mixed 常见场景：purpose/recipient、temporal、support/agreement for有多个常见用法，语域随具体用法变化，通常用于中性语境。
表示目的、用途或时间段
Dictionary facts from AI_FALLBACK, ECDICT, WIKTIONARY.