clamp down

基本解释

Ironically, the latest clamp-down has just led to renewed international criticism.
讓人哭笑不得的是，最近的制裁結果衹是導致新一波國際社會的批評。
A. played clamp-down defense when it needed to both in the fourth quarter of their Game 1 victory and in the closing moments of Game 4.
雖然這個數字還是有些高，但是第1場比賽和第4場比賽的第4節，在需要防守時，湖人還是打出了高質量的防守。
Global companies are growing increasingly worried that Thailand's recent clamp-down on Internet traffic might drag down the country's economic potential and make it more difficult to expand there.
國公司越來越擔心，泰國最近對互聯網交流實施的打擊有可能損害該國的經濟潛力，使企業更加難以在泰國擴大業務。

The ex-trial lawyer's platform is one of clamp-down protectionism and soak-the-rich populism.
FORBES: Magazine Article
He is proposing a further clamp-down on asylum-seekers: per person, Switzerland gets far more refugee applications than any other sizeable European country.
ECONOMIST: Christoph Blocher, ascendant Swiss populist
All told, Sky is responsible for a vast chunk of the Premier League's income, so a regulatory clamp-down on its ability to sell on the content it has bought from the soccer league could mean it will end up paying less for domestic broadcast rights in the next bidding round, which takes place three years from now.
FORBES: Magazine Article

To clamp down on people or activities means to take strong official action to stop or control them.