1
a clampdown on sth
clampdown 是可数名词，常用单数加不定冠词，后接 on 引出受限制的活动。
The government announced a clampdown on tax evasion.
政府宣布对逃税行为进行取缔。
压制；取缔
clampdowns — plural of clampdown
先理解核心含义，再看它在真实句子里的用法。
压制；取缔
sudden restriction on an activity
The government announced a clampdown on tax evasion.
政府宣布对逃税行为进行取缔。
突然的压制或惩罚性限制。
A sudden repressive or punitive restriction or control.
The city is carrying out a clampdown on loud noise from construction sites.
该市正在对建筑工地的噪音采取限制措施。
Residents welcomed the clampdown on reckless driving in the neighborhood.
居民们对社区内危险驾驶行为被取缔表示欢迎。
There has been a nationwide clampdown on the sale of unsafe toys.
全国范围内一直在打击不安全玩具的销售。
clampdown 是可数名词，常用单数加不定冠词，后接 on 引出受限制的活动。
The government announced a clampdown on tax evasion.
政府宣布对逃税行为进行取缔。
Not this
The government decided to clampdown on illegal parking.
Use this
The government decided to clamp down on illegal parking.
clampdown 是名词，表示‘压制/取缔’；表达动作‘取缔’要用动词短语 clamp down。汉语的‘取缔’可作动词，但英语中 clampdown 只能作名词，不能直接当动词用。
Not this
The police announced a clampdown of speeding.
Use this
The police announced a clampdown on speeding.
名词 clampdown 后接介词 on 引出被压制的对象，类似于动词短语 clamp down on。用 of 表示所属关系，不符合该名词的搭配。
Not this
There was clampdown on tax evasion last year.
Use this
There was a clampdown on tax evasion last year.
clampdown 是可数名词，在单数形式前需要冠词 a/an 或 the。汉语没有冠词系统，学习者容易漏掉 a。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
对腐败的严厉打击
The new mayor promised a clampdown on corruption.
新市长承诺严厉打击腐败。
政府的压制
A government clampdown on the press followed the protests.
抗议活动之后，政府对新闻界进行了压制。
安全管制
Residents complained about the security clampdown during the summit.
居民抱怨峰会期间的安全管制。
面临取缔
Illegal street vendors now face a clampdown.
非法街头摊贩如今面临取缔。
残酷镇压
The regime carried out a brutal clampdown on dissent.
该政权对异议人士进行了残酷镇压。
镇压，镇压
A refrain from The Clash's 1979 song "The Clampdown" on the album London Calling, used as an anthem against oppressive authority.
这是冲撞乐队1979年收录于专辑《London Calling》的歌曲《The Clampdown》中的副歌词句，被用作反抗专横权威的颂歌。
Use clampdowns naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
联想：clamp（夹钳）向下（down）压住，形象地记住'压制、取缔'的意思。
语域：neutral 常见场景：news reporting、government announcements、policy discussions clampdown 多用于新闻报道和官方语境，属于中性偏正式；日常口语中较少单独使用，更常用动词短语 clamp down on。
词表中的 down、crackdown、breakdown、countdown、meltdown 都以 /daʊn/ 结尾，与 clampdown /ˈklæmdaʊn/ 的末尾读音一致；但由于重音位置不同，它们不算严格押韵。注意 dawn /dɔːn/ 拼写接近 down /daʊn/，发音不同，不是 clampdown 的韵脚。
Dictionary facts from ECDICT, WIKTIONARY.