crack down on

v.

制裁，镇压；

The impact of a police crackdown on a street drug scene: evidence from the street
Who survived? Ethiopia's regulatory crackdown on foreign-funded NGOs
Latin American countries crack down on junk food.
ASSESSING THE CRACKDOWN ON MARIJUANA IN MARYLAND
Netherlands to crack down on complementary medicine.
Officials Call for Crackdown on Settlers
Police crackdown on Christiania in Copenhagen
Initial deterrent effects of the crackdown on drinking drivers in the state of Arizona
Don't Talk to the Humans The Crackdown on Social Science Research
Transformation of the Juvenile Court--Part II: Race and the Crack Down on Youth Crime, The