a solemn look的用法和样例：
- Finally ,when all the red lights went off ,the sudden high and far sky appears a solemn look.
- He looked at her with a solemn expression.
- He made a solemn promise to do better.
- The inauguration was a solemn event.
- Indeed he has a solemn face, but he is very humorous at heart.
a solemn look的相关资料：