杜門不出

杜门不出
dùménbùchū
(idiom) to shut oneself indoors; to avoid social contact; to cut oneself off from the outside world

CEDICT

緊閉門戶，不外出與人交往。

重編國語辭典

Entry Composition

1 杜門 dùmén to close the door (lit. and fig.)
2 不出 bùchū to not exceed; to not surpass