Put on a solemn face
板起脸孔
ceremonial garments worn by a Buddhist or Taoist priest
法衣
in a solemn and dignified look
岸然
chant ... with solemn fervor
悲吟
Ceremonial & Protocol Section
礼宾司
a solemn and stirring song
悲壮的歌曲
A breach of solemn oath
背弃明誓
the most solemn of ceremonies
大礼
ceremonial reception
礼节接待
make a solemn pledge of eternal love
海誓山盟
a solemn pledge of love
海誓山盟
put on a solemn face
唬起嘴脸