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
If you would supervise the refurbishing,
假如你能监督整修过程,
The eagle glides gracefully.
老鹰优雅地在空中滑翔。
Both the police and the workmen were grateful to the student for this piece of advance information.