名词
中文翻译：Unknown
同义词：
['semi-serious', 'semi-seriousness']
例句：
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1. He spoke in a semi-serious tone, trying to be serious.
他以半认真的语气说话，试图显得严肃。
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2. The teacher asked the students to participate in the semi-serious game.
老师要求学生们参加这个半认真的游戏。
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3. They conducted a semi-serious debate on the topic of climate change.
他们就气候变化这一主题进行了一次半认真的辩论。