Prepump
前级泵, 预抽泵
🗣️ 情景例句
You don't know up from down.
你黑白不分。
What do you do in your spare time?
空闲时间你干什么？
Soon, the bees in the hive flew out.They flew right to the dish.
很快，蜂箱里的蜜蜂飞了出来，它们径直朝碟子飞去。