referee
an official who is in charge of a game, making sure the rules are obeyed by the players
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裁判, 审判员
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[名词]
by the way
used to introduce a new topic or information that is related to the ongoing conversation
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顺便说一下, 对了
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[副词]
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an official who is in charge of a game, making sure the rules are obeyed by the players
裁判, 审判员
used to introduce a new topic or information that is related to the ongoing conversation
顺便说一下, 对了