Jackknife
n. 大折合式刀, 屈体跳水\\nvi. 弯身\\nvt. 用大折刀切
✅ 同义词
🗣️ 情景例句
Cry on my shoulders.
把委屈告诉我吧。
Are you married?
你结婚了吗？
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。