Chalcedonic
a. 石髓的, 坚强的
🗣️ 情景例句
or the subway ...
或者搭地铁……
Many new ideas are discovered during college years.
大部分崭新的观念都产生于大学时代。
I may.I can't make up my mind.
有可能退。我还拿不定主意。