Lanthanide
n. 镧系元素\\n[化] 镧系元素; 镧系
📖 牛津释义
lanthanide
n
(chemistry 化) any of the 15 elements in the lanthanide series, with atomic numbers from 57 (lanthanum) to 71 (lutetium) 镧系元素中之任何一种（从原子序数为57的镧到71的镥）.
🗣️ 情景例句
I'm having trouble eating.
我吃东西时有困难。
If it doesn't rain tomorrow,I think I'll go shopping.
如果明天不下雨，我将去购物。
I was born on Febuary 18, 1981.
我是1981年2月18日生的。