DICT.TW Dictionary Taiwan

 入境問俗 [ㄖㄨˋ ㄐㄧㄥˋ ㄨㄣˋ ㄙㄨˊ; ru4 jing4 wen4 su2]
 When you enter a country, enquire about the local customs (idiom); do as the natives do
 When in Rome, do as the Romans do
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