英文: Be polite.
中文: 要有礼貌。英文: Change the imperative sentences to polite, and the polite to imperative.
中文: 把下列命令式改成客气的语气,或把客气的语气改成命令式。)英文: Polite Language in Library
中文: 图书馆的礼貌用语英文: Be Neat and be Polite.
中文: 整洁点,礼貌点。英文: He has become very polite.
中文: 他变得有礼貌了。