Praseodymium
n. 镨\\n[化] 镨Pr
🗣️ 情景例句
Do you need anything particularly?
是不是买一些别的东西？
Not at all.
好。
Litter baskets have been placed under the trees, but people still throw their rubbish everywhere.
树下都已设置了废物筐，但是人们仍到处扔垃圾。