Preconcentration
n. 预选；预浓缩；预先富集
🗣️ 情景例句
You know, man's best friend is his dog.
你知道的，类最好的朋友就是狗。
Come what may, heaven won't fall.
船到桥头自会直。
All are entitled to an equal start.
所有的人都享有平等起步的权利。