Stone age
01
石器时代, 石时代
the early period of human history when people used things such as stone, horn, bone, etc. to make tools
语法信息
有生性状态
抽象
形态构成
复合词
不可数
singular
not gender specific
专有
例子
The Stone Age was characterized by the use of simple stone tools and the development of early human societies.
石器时代的特点是使用简单的石器工具和早期人类社会的发展。



























