装模作样

例句：

1. 1. He pretended to be a doctor when he was young.
   他年轻时假装自己是医生。
2. 2. She put on airs and acted superior to everyone around her.
   她装模作样，对周围的人表现出优越感。
3. 3. The children were pretending to be grown-ups at the party.
   孩子们在派对上假装是大人。