convention

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【词性】：n．

【释义】：

❶ 会议，大会；全国性大会〔the state convention of a political party一政党的全国性会议a national convention of English teachers英语教师的全国性大会〕
❷ (个人、国家之间的)协约，协定❸ 惯例，习俗〔It is a convention to say“How do you do?”on being introduced to someone．在你被介绍给别人时，按惯例该说“How do you do?”。〕