Cobaltyl
氧钴根
🗣️ 情景例句
Oh ... Harry!
噢……Harry！
You'll hurt your arm, if you don't take care.
你不专心的话，就会伤到你的手指。
On the third lap, the Class 3 and Class 1 runners both ran very fast.
在跑第三圈时，3班和1班的运动员都跑得非常快。