1. dummy up : 缄口不语;
名词
1. 人体模型,假人(常用于陈列服装)
A dummy is a model of a person, often used to display clothes.
2. 仿制品;仿造样品
You can use dummy to refer to things that are not real, but have been made to look or behave as if they are real.
3. (婴儿用的)橡皮奶嘴,橡皮奶头
A baby's dummy is a rubber or plastic object that you give the baby to suck so that he or she feels comforted.
1. a cartridge containing an explosive charge but no bullet
Synonym: blankblank shell
2. a figure representing the human form
3. an ignorant or foolish person
Synonym: dumbbelldopeboobboobypinhead
4. a person who does not talk
Synonym: silent person