as grave as a judge

例句：

1. 1. He was soserious that he didn't even smileat the joke.
   他非常严肃，对笑话都不屑一顾。
2. 2. Thejudge looked grave as heread the verdict.
   法官宣读判决时神情严肃。
3. 3. Shewas as grave as ajudge when she spoke about herfuture plans.
   她谈论未来计划时，神情严肃得就像一位法官。