Immatured
a. 发育未全的；未成熟的；未完全发展的；未完成的；不完全的；粗糙的\\nn. 未成年；幼禽；幼兽
🗣️ 情景例句
People power.
人力。
What must be must be.
该怎么样的就怎么样。
and so the tools of long ago have remained when even the bones of the men who made them have disappeared without trace.
因此，尽管制造这些工具的人的骨头早已荡然无存，但远古时代的石头工具却保存了下来。