音标:[kræk daun] ;
采取严厉措施, 制裁; 打击

crack down的用法和样例:

例句

  1. The riot police started to crack down on them.防暴警察开始对他们采取镇压行动。
【近义词】

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a'la
Acetamox
aerodynamic cleaner
aminomycetin
analogous poles
anomalous geochemical gradient
antepygidial bristle
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blow low
blowtorch burner
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ceratarcha umbrosa
Chavignon
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Dairy Box
dakovo (djakovo)
dipyrazolone
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faithhead
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full width at half peak amplitude
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Hirrlingen
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Isit'
isonitrosomethyl ethyl ketone
Joliot
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Zaostrov'ye