He often sharpens his sword on this grindstone.

他经常会在这个磨刀石上打磨自己的宝剑。

The old man carried a stone to make a grindstone.

老人搬了一块石头做磨石。

The police believe the murder weapon was a grindstone.

警察认为作案凶器是一个砂轮。

He grinds ax on the grindstone.

他在磨石上磨斧。

Back to the grindstone tomorrow.

回到砂轮的明天。

Failure eis the grindstone.

失败是块磨刀石。

Failure is the grindstone.

失败是块磨刀石。

He grinds the ax on the grindstone.

他在磨刀石上磨斧头。