/kr?k/C2tostartdealingwithbadorillegalbehaviourin a moresevereway:制裁;处罚;打击;镇压Thelibraryiscrackingdownonpeoplewholosetheirbooks.图书馆将严厉处罚丢书的人。SMART Vocabulary: related words and phrasesPreventing and impeding
anti-jamming
avert
avoid
avoidable
bar
be a drag onsomeone/somethingidiom
bottleneck
derail
fireproof
hang
havesomeone/somethinghanging roundyourneckidiom
head off
hinder
hogtie
prevent
preventable
prevention
prevention is better than cureidiom
preventive
scuttle
See more results ?(Definition ofcrack downfrom theCambridge Advanced Learner's Dictionary & Thesaurus? Cambridge University Press)
crack down| American Dictionary
crack down
phrasal verbwithcrackverbus
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/kr?k/to takestrongactiontostopsomething:Thelawlimitsengineidlingto fourminutes, but there aren’t enoughpoliceofficersto crack down on theproblem.(Definition ofcrack downfrom theCambridge Academic Content Dictionary? Cambridge University Press)#https://dictionary.cambridge.org//dictionary/english/crack-down##