An electric battery was discovered in a rock carbon dated approximately 500,000 years ago.

在岩石中发现了碳测定是大约500,000年以前的一块电池。

youdao

An electric battery was discovered in a rock carbon dated approximately 500,000 years ago.

在岩石中发现了碳测定是大约500,000年以前的一块电池。

youdao