Mandrels
n. （圆形）心轴
🗣️ 情景例句
Sure, that would be find with me.
当然，我对此没有意见。
In college I majored in science, What was your major?
大学时我主修自然科学，你主修什么呢？
The study of custom can be profitable only after certain preliminary propositions have been accepted,
只有在某些基本的主张被接受下来、同时有些主张被激烈反对时，