动词缄口不语; 不吭声，缄口

1. 缄口不语：dumfound 说不出话 | dummy up 缄口不语 | dummy 哑巴

verb

1. refuse to talk or stop talking
fall silent

e.g. The children shut up when their father approached

Synonym: close upclam upshut upbelt upbutton upbe quietkeep mum

2. make a dummy of

e.g. dummy up the books that are to be published

Synonym: dummy