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》
1·The consequences could be serious.
后果可能是严重的。
—— 《牛津词典》
2·Smoking is a serious danger to health.
吸烟严重危害健康。
—— 《牛津词典》
3·The strike caused serious disruptions.
罢工造成了严重的混乱。
—— 《牛津词典》
4·They pose a serious threat to security.
他们对安全构成严重威胁。
—— 《牛津词典》
5·He suffers from a serious heart condition.
他患有严重的心脏病。
—— 《牛津词典》
1·The agreement removes the last serious obstacle to the signing of the arms treaty.
该协议为武器条约的签署去除了最后一个重大障碍。
—— 《柯林斯英汉双解大词典》
2·Growing levels of pollution represent a serious health hazard to the local population.
日益严重的污染对当地人民的健康构成了重大威胁。
—— 《牛津词典》
3·The opposition now seems too weak to stage any serious protests against the government.
反对党现在似乎太弱小，无力针对政府组织什么重大的抗议。
—— 《柯林斯英汉双解大词典》
4·Aside from the technical challenges, the project will also pose a serious financial challenge.
除了技术上的挑战，该项目还将带来重大的财务挑战。
5·The presence of MOW equipment either occupying the wrong track or fouling an adjacent track has been the cause of serious accidents in the past.
过去，护路设备占用错误轨道或阻塞相邻车道是造成重大事故的原因。
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·It wasn't serious—it was all done in fun.
那不是认真的，全是闹着玩的。
—— 《牛津词典》
3·You really are serious about this, aren't you?
你对这事确实是认真的，是吧？
—— 《柯林斯英汉双解大词典》
4·Were you serious, or was that a bit of tomfoolery?
你是认真的，还是仅仅胡闹而已？
—— 《柯林斯英汉双解大词典》
5·I'm serious, things are difficult enough as they are.
我是认真的，事情照现在这样已经够困难的了。
—— 《柯林斯英汉双解大词典》
1·The medication has been commonly prescribed to treat serious acne since the 1980s.
这种药自1980来以来被广泛使用治疗重度痤疮。
2·Serious users of social media often maintain far, far more connections than that, though.
但社交媒体重度用户的好友数远远超过这个数字。
3·Five of the injured have been admitted to the high dependence unit of the Royal Darwin Hospital. Three have serious burns and two have respiratory problems.
已经确认五个伤员被送到皇家达尔文医院的高依赖性病房(HDU)，其中三个重度烧伤，两个有呼吸方面问题。
4·The characteristics of hypertension are serious, drug treatment has some effect but can not achieve ideal effect and easy to have hypertension complications.
高血压的特点为重度高血压，药物对其有一定效果，但不能达标，易发生高血压的并发症；
5·CONCLUSION: Superficial hypothermia has the cerebral protection on moderate traumatic brain injury, however, there is no obvious effect on serious traumatic brain injury.
结论：浅低温对中度创伤性颅脑损伤具有脑保护作用，但对重度创伤性颅脑损伤可能无明显的脑保护作用。