to dummy up
01
闭嘴, 保持沉默
to refuse to speak or to stop talking, especially when pressured or asked questions
Informal
例子
The suspect dummied up when asked about the robbery.
当被问及抢劫时，嫌疑人闭口不言。
He dummied up the moment lawyers entered the room.
律师们一进房间，他就装哑巴了。
02
制作...的模型, 创建...的复制品
make a dummy of
