Roma イディオム

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when in Rome, do as the Romans do

when you are a visitor do the same things as your hosts do "When I visit an Asian country, I learn the customs, and do as the ""Romans"" do."

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When in Rome, do as the Romans do.

You should adopt the customs of the people or country you are visiting, and behave in the same way.

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Roman collar|Roman|collar

n. The high, plain, white collar worn by priests and clergymen. The man with the Roman collar is the new Episcopalian preacher. Many Protestant churches do not require their ministers to wear Roman collars.

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Roman

Roman
see when in Rome do as the Romans do.

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when in Rome do as the Romans do

when in Rome do as the Romans do
Follow local custom, as in Kate said they'd all be wearing shorts or blue jeans to the outdoor wedding, so when in Rome—we'll do the same. This advice allegedly was Saint Ambrose's answer to Saint Augustine when asked whether they should fast on Saturday as Romans did, or not, as in Milan. It appeared in English by about 1530 and remains so well known that it is often shortened, as in the example.