Celtium
(=Hafnium)[化]72号元素铪的旧称
🔁 扩展释义
【医】 72号元素铪的旧名
🗣️ 情景例句
It's nice meeting you.
很高兴认识你。
We must get back to first principles.
我们必须回到基本原则上来。
Looking up I saw that we were surrounded by children in rags who were looking at us silently as we ate.
我抬头一看，发现我们被一群衣衫褴褛的小孩团团围住了，他们在默不作声地看着我们吃饭。