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
You have to ask for my father's permission.
你必须征得我父亲的同意。
Sure. Here it is.
当然有。这就是。
Really? What's the trouble?
真的？怎么啦？