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严密
HSK7-9adj 0 · Lv.1
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make a rule/law strict; tighten up 严密 规章制度 tighten up rules and regulations
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⭐ Lv.10 分 · 距下一级 50 分
kín; kín đáo
make a rule/law strict; tighten up 严密 规章制度 tighten up rules and regulations