Preextraction
预提取, 预浸出
🗣️ 情景例句
I like to study in the library because it's so quiet.
我喜欢在图书馆学习因为那儿很安静。
The leopard can never change its spots.
花豹永不能改变身上的斑点（指：本性难移）。
That's the trouble, vicar,' answered Bill.
“问题就在这里，牧师，”比尔回答说。