solemn
adj. 表情严肃的，庄严的；（承诺、协定等）庄严的，郑重的；（仪式）庄严的，隆重的
比较级 solemner或more solemn
最高级 solemnest或most solemn
例句
I made a solemn promise that I would return.
我郑重承诺我会回来的。
《牛津词典》
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》
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。
