Lanthanoid
镧系元素
🗣️ 情景例句
Consider the cost before you decide.
你决定前要先考虑费用问题。
Oh, half-and-half, you know.
马马虎虎。
The struggling musician and the struggling artist. What a pair!
艰苦奋斗的音乐家和艰苦奋斗的画家在一起。真是难兄难弟！