up反义词，pick

反义词是put down，表示放下，例如：

1、We've put down a 5% deposit on the house.我们已支付了房款的5%作为订金。

2、She finally agreed to have the wretched animal put down.她最后同意用药结束这头可怜的动物的生命。

3、The army put down the rebellion.军队镇压了叛乱。