Chalcolithic
a. [亦作c-][考古]红铜时代的,铜石并用时代的
🗣️ 情景例句
Scared? Why?
紧张？ 为什么？
If you wish good advice, consult an old man.
如要忠告向老人请教。
He did a lot of research and travelled around the USA looking for information about his ancestors.
他做了大量的研究，在美国跑了许多地方，了解有关祖先的情况。