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Politeness is the basic norm of behavior in social life .
文明礼貌是社会生活中最基本的行为准则。
youdao
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Fair competition and fair deal are the basic norm of behavior in security market.
公平竞争和公平交易是证券市场的基本行为准则。
youdao
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Fair competition and fair deal are the basic norm of behavior in security market.
公平竞争和公平交易是证券市场的基本行为准则。
youdao