1
cave in (intransitive, physical)
The mine shaft caved in after the explosion.
爆炸后矿井塌陷了。
塌陷；坍塌
caves in — third person singular of cave in
先理解核心含义，再看它在真实句子里的用法。
塌陷；坍塌
To collapse inward or downward.
The mine shaft caved in after the explosion.
爆炸后矿井塌陷了。
向内或向下塌陷
To collapse inward or downward.
导致向内或向下塌陷
To cause to collapse inward or downward.
让步；违心同意
To relent; to grant approval against one's initial will.
cave in
Base
原形
caves in
3rd person
第三人称单数
caving in
-ing
现在分词
caved in
Past
过去式
caved in
Past participle
过去分词
He caves in under pressure.
他在压力下屈服。
She caved in after hours of negotiation.
经过数小时的谈判，她屈服了。
They have caved in to the demands.
他们已经屈服于要求。
cave in 是规则动词短语，过去式和过去分词为 caved in。
The old tunnel caved in after the heavy rain.
大雨过后，旧隧道塌陷了。
He refused to cave in to their demands, even under pressure.
即使在压力下，他也拒绝屈服于他们的要求。
The roof was caving in under the weight of the snow.
屋顶在积雪的重压下正在下陷。
The mine shaft caved in after the explosion.
爆炸后矿井塌陷了。
The heavy snow caved in the roof of the shed.
大雪压塌了棚屋的屋顶。
通常后接to+压力/要求/人等
The company caved in to the union's demands.
公司屈服于工会的要求。
He finally caved in and admitted his mistake.
他终于让步承认了错误。
Not this
He caved.
Use this
He caved in.
cave in 表示‘屈服’时，介词 in 不可省略；只写 cave 意为‘挖洞’或‘山洞’，不表达屈服义。
Not this
She caved in for the demands.
Use this
She caved in to the demands.
cave in 表示‘屈服于’时，需用介词 to 引出屈服的对象，不能用 for。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
在压力下屈服
He finally caved in under pressure from his family.
他在家人的压力下最终屈服了。
屈服于要求
The government refused to cave in to the terrorists' demands.
政府拒绝屈服于恐怖分子的要求。
自身塌陷
The old mine shaft caved in on itself.
旧矿井塌陷了。
因精疲力竭而倒下
After the long hike, he just caved in from exhaustion.
长途跋涉后，他因精疲力竭而倒下了。
完全垮掉
The roof caved in completely under the weight of the snow.
屋顶在雪的重量下完全塌陷了。
屈服，投降
He finally caved in to their demands.
他最终屈服于他们的要求。
Use caves in naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
山洞塌陷，意指屈服或下陷。
语域：mixed 常见场景：physical collapse of structure、yielding under pressure or argument 该短语在物理塌陷（如屋顶、地面）和比喻屈服（如谈判、压力下）两种语境中都很常见，注册混合，具体取决于使用场景。
常用作不及物动词；表示屈服时常与to连用，如cave in to pressure.
Dictionary facts from ECDICT, WIKTIONARY.