Chalcolithic
a. [亦作c-][考古]红铜时代的,铜石并用时代的
🗣️ 情景例句
What school did you go to?
你上哪所学校？
I wouldn't worry about it, if I were you.
如果我是你，我就不会担心。
She has been collecting stamps.
她一直收集邮票。