那个拒绝使用智能手机的人被同事们戏称为穴居人。

The man who refuses to use smartphones is jokingly called a ___troglodyte by his coworkers.

这些壁画可能是由穴居人几千年前创作的。

These cave paintings might have been created by ___troglodytes thousands of years ago.

他真是个老顽固，至今还在用打字机写文章。

He's a real ___troglodyte, still using a typewriter to write articles.