clampdown

名词 clampdown:

1. sudden restriction on an activity

clamp.down

n.（名词）
An imposing of restrictions or controls:
制裁，严禁，取缔：限制与控制的强行施加：
例句：
.Advertisers and broadcasters would raise howls of protest against any strong clampdown.(Wall Street Journal)
.广告商和广播商将发出抗议来寻求针对严厉制裁的保护.(华尔街期刊)