- Learn English
-
Learn grammar
-
List of words
-
Study your cards
-
Hang On, Man!
-
Audio Books
-
More apps
- Recent searches
-
harry stack sullivan
-
adiantum
-
informed
-
manganese
-
environment
-
adiaphorous
-
pan
-
drag in
-
wounded
-
peddle
- Hide translation
crack down
crack down /ˈkræk daʊn/
verb
-
Repress or suppress (something regarded as undesirable)
(
clamp down
, crack down
)
repress or suppress (something regarded as undesirable)
The police clamped down on illegal drugs
The police clamped down on illegal drugs