Polypteroid
多鳍鱼类的鱼
🗣️ 情景例句
Six months ago.
六个月以前。
He who purposes to be an author, should first be a student.
想当作家，相当学生。
On arriving in England, they were taken to the Crystal Palace by train.
一到英国，火车就把他们送到了水晶宫。