Topslicing
下行水平分层崩落采矿法
🗣️ 情景例句
Why not?
有何不可？
He was always called as genius.
他总被人们称为“天才”。
A few peopple in each group are given the task of remembering the group's family history that goes back over centuries.
每一个家族都有几个人担任记忆延续了几个世纪的家史的任务。