clampdown
noun [ C ] uk/ˈklæmp.daʊn/ us/ˈklæmp.daʊn/
取缔；严禁；强行限制；压制
a sudden action taken by a government or people in authority to stop or limit a particular activity
Following the military coup, there has been a clampdown on press reporting in the capital. 军事政变后，首都的新闻报道受到了严格限制。