Pickeringite
镁明矾
🗣️ 情景例句
Come in!
进来，
He was so startled that he yelled.
他惊吓得高声喊叫。
The spheres had been magnetized and attracted or repelled each other all the time.
金属球经过磁化，互相之间不停地相互吸引或相互排斥。