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
They have to be here.
它们肯定就在这儿。
A good name keeps lustre in the dark.
好的名声在黑暗中也会光芒四射。
The two boys are in the river now.
两个男孩现在在河里。