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1. 有礼貌的：decorative 装饰的 | decorous 有礼貌的 | decorously 有礼貌地

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2. 端正的：decoredecoring 除芯 | decorous 端正的 | decorously 有礼地

3. 有礼貌的/高雅的/端正的：decoring /出芯/除芯/ | decorous /有礼貌的/高雅的/端正的/ | decorously /有礼地/端正地/

1. 符合礼仪的;得体的;庄重的
    Decorous behaviour is very respectable, calm, and polite.

decorous

    e.g. They go for decorous walks every day in parks with their nanny.
           他们每天都和保姆一起在公园里散步，表现得很有教养。

1. characterized by propriety and dignity and good taste in manners and conduct

    e.g. the tete-a-tete was decorous in the extreme

2. according with custom or propriety

    e.g. her becoming modesty
           comely behavior
           it is not comme il faut for a gentleman to be constantly asking for money
           a decent burial
           seemly behavior

    Synonym: becomingcomelycomme il fautdecentseemly