toughen rule/von

21.   The UAE authorities this year toughened immigration rules to flush out illegal migrants and end turmoil in the labour market.

v. + rule >>共 485 个
violate 6.52%
change 6.11%
break 5.22%
follow 3.58%
have 3.22%
enforce 3.08%
set 2.42%
impose 1.90%
establish 1.81%
tighten 1.71%
toughen 0.19%
toughen + n. >>共 112 个
law 12.66%
penalty 8.86%
stance 6.15%
requirement 4.88%
standard 4.70%
sanction 4.70%
rule 3.80%
enforcement 3.25%
measure 3.07%
regulation 2.89%
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