Preconcentration
n. 预选；预浓缩；预先富集
🗣️ 情景例句
I want some whiskey straight up.
我想要些纯威士忌。
It's only a suggestion, you don't have to take it.
这只是一个建议，你可以不听。
But that costs more.
可是那样成本较高。