solemn/earnest/grave/serious.导航词义：严肃的，认真的

1. solemn:adj. 严肃的，庄重的.常指因发生不幸事件或处于庄重场合而非常严肃的，语义较强。

The mourners looked solemn at the funeral.

葬礼上，哀悼者神情严肃。

The Premier's burial was a solemn occasion.

总理的葬礼场面庄重。

He looked very solemn as he announced the decision.

在宣布这一决定时，他显得非常严肃。

2. earnest:adj. 郑重其事的，非常认真的.指人或举止认真而诚恳的。

The new secretary is earnest in her work.

新来的秘书工作很认真。

Mark is an earnest man.

马克是个真诚的人。

He had an earnest talk with his girlfriend.

他和女友进行了一次认真的交谈。

I made an earnest effort to persuade her.

我非常诚恳地努力说服她。

3. grave:adj. 严肃的，表情凝重的.尤指因发生重大或令人担心的事件而神情严肃的。

He stood there with a grave look when he heard the news.

他听到这个消息后，脸色凝重地站在那里。

His face was grave when I told him my decision.

当我告诉他我的决定时，他的脸色很严肃。

It was a woman, grave and dignified, who advanced to meet him.

朝他走过来的分明是一个妇人，严肃而端庄。

4. serious:adj. 严肃的，认真的.普通用词，指非常认真而并非开玩笑的，也指人神情严肃的或事情需要认真考虑的。

Do you think he is serious about leaving school?

你认为他当真要辍学吗？

I am pretty serious about what I said at lunch.

我午餐时说的话是非常认真的。

You look serious; is there anything wrong?

你看上去很严肃，出什么事了吗？

This is a serious question.

这是个非常严肃的问题。

全部

1·I made a solemn promise that I would return.

我郑重承诺我会回来的。《牛津词典》

2·Erica was solemn, pulling at her blonde curls.

埃丽卡表情严肃，拉扯着她金黄色的卷发。《柯林斯英汉双解大词典》

3·The solemn intensity of Jade's gaze discomfited him.

在杰德强烈而严肃的凝视下他狼狈不堪。《柯林斯英汉双解大词典》

4·There was nothing portentous or solemn about him. He was bubbling with humour.

他身上一点也不装腔作势或故作严肃。他幽默十足。《柯林斯英汉双解大词典》

5·At the most solemn moments he will flash a mocking smile or make an ironic remark.

在最庄严的的时刻他也会露出嘲弄的微笑或是说些讽刺挖苦的话。《柯林斯英汉双解大词典》

6·They take a solemn oath.

他们庄严地宣誓。

7·The ceremony proceeded in a solemn atmosphere.

仪式在庄严的气氛中进行。《新英汉大辞典》

8·Grand, solemn, and dark was the whole landscape around.

周围的景色伟大、庄严而深沉。

9·Her face was so solemn that he almost whispered his answer.

她的脸那么严肃，他几乎是在低声回答。

10·Some follow each other in solemn parades, but others swirl about, sideways and upside down.

庄严的游行队伍中有的人跟随彼此，而有些则原地打转，侧着身子，上下颠倒。

庄严的

1·At the most solemn moments he will flash a mocking smile or make an ironic remark.

在最庄严的的时刻他也会露出嘲弄的微笑或是说些讽刺挖苦的话。《柯林斯英汉双解大词典》

2·The ceremony proceeded in a solemn atmosphere.

仪式在庄严的气氛中进行。《新英汉大辞典》

3·Grand, solemn, and dark was the whole landscape around.

周围的景色伟大、庄严而深沉。

4·Some follow each other in solemn parades, but others swirl about, sideways and upside down.

庄严的游行队伍中有的人跟随彼此，而有些则原地打转，侧着身子，上下颠倒。

5·All the saints above, in solemn troops, and sweet societies sing for him, and wipe the tears forever from his eyes.

所有的圣人都在庄严的军队和温馨的团体中为他歌唱，将他的泪水永远的拭去。

严肃

1·Erica was solemn, pulling at her blonde curls.

埃丽卡表情严肃，拉扯着她金黄色的卷发。《柯林斯英汉双解大词典》

2·Her face was so solemn that he almost whispered his answer.

她的脸那么严肃，他几乎是在低声回答。

3·The Frog-Footman repeated, in the same solemn tone, only changing the order of the words a little.

蛙脸仆人只是把语序换了一下，用同样严肃的声调重复了一遍。

4·Here the unfeeling Toad broke into a snigger, and then pulled himself together and tried to look particularly solemn.

说到这里，没心没肺的托德不禁暗笑起来，随后又振作起来，竭力装出一副特别严肃的样子。

5·His solemn little face broke into smiles.

他那严肃的小脸绽开了笑容。《柯林斯英汉双解大词典》

庄重

1·Actually, much of it is solemn and melancholy.

实际上，大多数都是庄重和忧郁的。

2·And Europe, for its part, has a solemn obligation to keep that road open.

而欧洲，会庄重地承诺将通向这条道路的大门敞开。

3·Even when I'm in this solemn and absurd role

即使发我在这个庄重又荒谬的角色中

4·I think we've all seen that guy at a solemn event like a funeral desperately trying to refrain from checking his BlackBerry during the service.

我想我们都在类似葬礼这样的庄重场合下看到过拼命试着压抑自己想要查看黑莓手机的冲动的人。

5·Modern Paris, London, condensed by the modern urban civilization and solemn, elegant and romantic, make them holds no instead of in the history of human civilization.

现代的巴黎、伦敦，城市文明所凝聚的时髦和庄重，典雅与浪漫，使得它们在人类文明史上占有不行代替的位置。

郑重

1·She made a solemn promise to him when they became engaged that she would give up cigarettes for good.

他们订婚时，她向他许下郑重的承诺，说她会永远戒烟。《柯林斯英汉双解大词典》

2·So an angry Obama, sounding like a prosecutor, said, My solemn pledge is that we will bring those responsible to justice.

于是，出现了一个愤怒的奥巴马，他像公诉人一样说道，“我郑重承诺，一定将这些人绳之以法。”

3·Irish voters also received solemn written declarations that Lisbon did not affect Ireland's cherished military neutrality, nor its laws on abortion or taxation.

爱尔兰选民还收到了郑重的书面声明，称里斯本条约不会影响爱尔兰珍视的军事中立以及有关流产或税收的法律。

4·The two-dimensional code under the micro signal are safe! Small series of information security solemn statement!

本微信号下的二维码都是安全的！小编信息安全的郑重声明！

5·New Year's message: no matter how precious the gift, how solemn oath not required.

元旦短信：不需要多么贵重的礼物，也不需要多么郑重的誓言。

隆重

1·I intend to pay a solemn call of thanks upon you.

我一定要到府上作一次隆重的拜访，表示感谢。

2·The reception enjoyed a warm and solemn atmosphere.

招待会现场气氛热烈而隆重。

3·M. the Prior and Vicar-General of Saint-Germain des Pres ordered a solemn procession of all his clergy, in which the Pope's Nuncio officiated.

圣日耳曼·德·勃雷的大助理主教兼院长先生传谕给他的全体圣职人员，举行了一次隆重的迎神游行仪式，那次仪式并由罗马教皇的使臣主持。

4·Mr. Wang Lei, Political Counselor of the Embassy first made a brief and solemn introduction on Mr. Deng Boqing, the new Chinese Ambassador to Nigeria and his wife, Mrs. Cheng Hong.

使馆政务参赞王雷首先向出席嘉宾隆重介绍了新近履新的邓波清大使及其夫人程红的简况。

5·Wuhan Delicacy gathered domestic and overseas famous snacks which provide people a solemn and grand feast.

“美味武汉”聚集了中外各色名小吃，一场隆重而盛大的美食盛宴姗姗而来。

肃穆的

1·They waited a time that seemed an age, and then the same muffled boom troubled the solemn hush.

他们等了一段时间，仿佛等了一个世纪，然后，同样低沉的轰隆声打破了肃穆的寂静。

2·He listened intently, but the stillness was profound and solemn--awful, even, and depressing to the spirits.

他聚精会神地听着，但周围一片寂静，深沉而肃穆——甚至可怕，令人沮丧。

3·They stood in the noon of that strange and solemn splendour, as if it were the light that is to reveal all secrets, and the daybreak that shall unite all who belong to one another.

他们三人站在亮如白昼的奇妙而肃穆的光辉里，似乎正是那光辉要揭示一切隐秘，而那白昼则要将所有相属的人结合在一起。

4·These solemn states are almost participants in modern life.

而肃穆的法老像似乎也在参与着后人的生活。

5·Trails on both sides is the fountain pool, green space, parks, landscape layout is neat founder, have extremely strong solemn feeling, also have a certain affinity.

步道两旁是喷泉水池、绿地、停车场，景观布局规整方正，具有极强的肃穆感，同时也具有一定的亲和力。

俨然

1·It steals other people intellectual property rights, after the assembly, pieces together, trades the version, pastes the sign, the solemn legal copy floods the market, becomes consumer's new favorite.

它盗取他人的知识产权，经过组装、拼凑、换版、贴牌，俨然正版充斥市场，成为消费者的新宠。

(1)solemn promise庄严承诺；誓言

(1)solemn ceremony隆重的典礼