Wearing the correct dress for any occasion is a matter of good manners .

在任何場合都穿合適的衣服是一種禮貌。

語言點:a matter of……(關(guān)于...的)問題, eg: Whether you do or not is a matter of principle. 你做與不做是一個原則問題。
as a matter of fact 其實,事實上

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