Hellandite
钙铒钇石
🗣️ 情景例句
to talk to someone at the bank next week.
下星期与银行的人谈一谈。
He who makes no mistakes, makes nothing.
不犯错，将一事无成。
They play it like this, six students stand in a row in front of the class.
6个学生在全班前面站成一排。