Preconcentration
n. 预选；预浓缩；预先富集
🗣️ 情景例句
Your birthday is tomorrow, isn't it?
你明天生日 ，是吗？
Fortune favours fools.
傻子有傻福。
Chaplin and his friend are caught on the edge of a mountain in a snow storm in a small wooden house.
卓别林和他的朋友被一场暴风雪困在山边的一间小木房里。