Ponogen
[医] 疲劳素
🗣️ 情景例句
Now let's discuss the freight and packing.
现在让我们来讨论一下货运与包装问题。
By the time we got there,the play had already begun.
等我们到那里，戏已经开始了。
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。