同义词： cave man cave dweller troglodyte
以上来源于: WordNet
N-COUNT Cavemen were people in prehistoric times who lived mainly in caves. 穴居人; 史前时代居住在洞穴里的人
You're why cavemen chiseled on walls.
山顶洞人凿壁绘画，就是因为有你。
youdao
Cavemen used fire to drive away wild animals.
原始人用火驱赶野兽。
The cavemen lived in a period of history antecedent to written records.
山顶洞人生活在有文字记载之前的一个历史时期。
The comedy, starring Jack Black and Michael Cera as cavemen, is facing strong competition from Warner Bros.
FORBES: Magazine Article
So why, asks Barney Pell, does it force us to communicate like cavemen?
Whether Geico's cavemen will fall into the same trap won't be known until the pitchmen hit prime time this fall.
FORBES: America's Most-Loved Spokescreatures
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