Acitinide
锕类
🗣️ 情景例句
Are you all right?
你还好吗？
Am I your teacher?
我是你们的教员吗？
They trooped behind the first dancer, copying its movements.
它们成群结队跟在第一只跳舞的蜜蜂后面，模仿着它的动作。