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a. 严肃的, 认真的, 重要的, 严重的
【电】 严重的

engaged in serious drinking; made a serious attempt to learn how to ski backward; serious study of Italian.
沉溺于饮酒；认真地试图学会怎样向后滑雪；认真地学习意大利语
raised some serious objections to the proposal.
对提议举出了一些尖锐的反对意见
serious injuries; a serious turn of events.
重伤；事件的严重的转折

I\'m serious: we expect you to complete the assignment on time. She has posed a serious question that deserves a thoughtful response.
我不是在开玩笑：我们希望你能接时完成任务。她提出了一个严肃的问题，应好好思索予以答复

serious foul serious-minded serious patient serious testing take for serious pretending to be serious and now to be serious comprehensive arrangement for serious disease major and serious criminal cases try first to make their mistake sound less serious and then to reduce it to nothing at all serious blepharoptosis serious crime serious case serious asthma serious arythmia serious illness serious hepatitis serious accident serious arthralgia serious loss