Central atom
[化] 中心原子
🧩 词语组成解析
🗣️ 情景例句
It's no secret my wife is expecting a baby.
我老婆快生孩子了，这又不是什么秘密。
I was surprised to see you here.
我想不到在这里碰到了你。
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。