Graptozoa
笔石纲
🗣️ 情景例句
It has a full basement,
全地下室，
Sure. We are friends since primary school.
当然，我们从小学就是朋友了。
There is no social problem it is more incumbent upon us to understand than this of the role of custom.
而没有任何一个社会问题比得上风俗的作用问题更要求我们对它理解。