大小单双倍投顺口溜简介：Top students like Li Tao were doing their own thing casually in geography class, while other students behind them were doing other things. Only a few girls and boys persisted in listening to the class and taking notes.
Top students like Li Tao were doing their own thing casually in geography class, while other students behind them were doing other things. Only a few girls and boys persisted in listening to the class and taking notes.
