go into one's shell
成語所屬單字shell
go into one's shell — 慣用語
1. to become quieter and less willing to talk to people, often because of embarrass
1.慣用語
釋義
退縮到自己的殼裡（因害羞或受傷而變得沉默、不願與人交流）
to become quieter and less willing to talk to people, often because of embarrassment, shyness, or emotional hurt
例句
After being laughed at in class, Linh went into her shell and stopped raising her hand.
When strangers visit, the little boy goes into his shell and hides behind his mother.