1·You're joking. Are you serious?
你在开玩笑吧。你是认真的吗？
—— 《柯林斯英汉双解大词典》
2·He's quite a serious person.
他是一个相当严肃的人。
—— 《柯林斯英汉双解大词典》
3·The consequences could be serious.
后果可能是严重的。
—— 《牛津词典》
4·The strike caused serious disruptions.
罢工造成了严重的混乱。
—— 《牛津词典》
5·Smoking is a serious danger to health.
吸烟严重危害健康。
—— 《牛津词典》
6·He's not really a very serious person.
他并非完全是一个非常严肃的人。
—— 《牛津词典》
7·Stop being facetious; this is serious.
别乱开玩笑，这是个严肃的事。
—— 《牛津词典》
8·His voice took on a more serious tone.
他说话的语气变得严肃起来。
—— 《牛津词典》
9·Don't laugh, it's a serious suggestion.
别笑，这是一条严肃的建议。
—— 《牛津词典》
10·They pose a serious threat to security.
他们对安全构成严重威胁。
—— 《牛津词典》
1·He struck me as a very serious but friendly person.
他在我眼里是个非常严肃但友好的人。
—— 《柯林斯英汉双解大词典》
2·The campaign was gimmicky, but it had a serious side to it.
这场运动有点玩弄技俩，不过也有它严肃的一面。
—— 《柯林斯英汉双解大词典》
3·All at once, Mick's serious expression softened into a grin.
顷刻间，米克严肃的表情和蔼起来，咧嘴笑了。
—— 《柯林斯英汉双解大词典》
4·There is a serious message at the core of all this frivolity.
所有这些轻松乐事的核心传递着一个严肃的讯息。
—— 《柯林斯英汉双解大词典》
5·There were only one or two serious allegations of malpractice.
只有一两起严肃的渎职指控。
—— 《柯林斯英汉双解大词典》