一本正经
yìběn-zhèngjīngTraditional 一本正經
in all seriousness; with a straight face
Every meaning
yīběn-zhèngjīng
- in all seriousness; with a straight face
In the Library
旁边坐着一个八岁左右的男孩,正一本正经地纠正外婆:“不对,是‘四’,不是‘十’。
Its characters
Words with 一
Words with 本
Meanings from our own dictionary. Chengyu from the Xinhua idiom list, the most common first.