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
No, I'm not kidding.
不， 我不是说笑。
Ill (or Evil) gotten, ill (or evil) spent.
悖入悖出。
Behind the house there is a tree.
房子后面有一棵树。