世界上最硬的东西是什么?。

What is the hardest thing in the world?

youdao

人体最硬的骨头是下颚骨（颔骨）?。

The hardest bone in the human body is the jawbone.

youdao

有些最硬的刀具材料由于太脆而缺乏强度。

Some of the hardest tool materials lack strength because they are too brittle.

youdao

装备呢？我喜欢用我能掌控并高效使用的最硬的竿子。（越硬越好，只要能驾驭并保持效率）

And what about tackle? I want to use the heaviest gear I can use effectively.

youdao

装备呢？我喜欢用我能掌控并高效使用的最硬的竿子。（越硬越好，只要能驾驭并保持效率）

And what about tackle? I want to use the heaviest gear I can use effectively.

youdao