His priggish behavior is a cover for his insecurities.

他的自命清高行为是为了掩饰他的不安全感。

The priggish professor refused to listen to any new ideas.

那位自命清高的教授拒绝听取任何新想法。

He always acts priggish at social gatherings, which annoys everyone.

他在社交聚会上总是表现得自命清高，这让所有人都很烦。

Her priggish attitude makes it hard for her to make friends.

她的自命清高态度让她很难交到朋友。

Don't be so priggish about the rules; sometimes flexibility is needed.

不要对规则自命清高，有时候需要灵活变通。