夜不閉戶

yèbúbìhù

doors are not bolted at night —law and order prevail

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ye4 bu4 bi4 hu4

lit. doors not locked at night (idiom); fig. stable society

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夜不閉戶|夜不闭户 [yè bù bì hù] ► lit. doors not locked at night (idiom); fig. stable society