Prevalue
预置值
🗣️ 情景例句
If he says he's going to be here, he's here.
假如他说他要来这儿 他就一定会来。
An empty purse frightens many friends.
曩中无分文，亲友不上门。
Yes. The No.72 bus will take you there.
有。72路公共汽车会把你带到那儿。