And a mind needs books like a sword needs a whetstone.

好脑筋需要书本，就如同宝剑需要磨刀石。

Soak your whetstone in tap water for five minutes.

将磨刀石浸泡在自来水中五分钟。

He could fetch the whetstone when the blades needed sharpening.

当刀片需要磨快时，他可以取来磨刀石。

He kept close to Sivert, and had to get him to use the whetstone every time.

他离西维特很近， 每次都得让他用磨刀石。

He hid the whetstone, so they had to hunt for it when the blades needed sharpening.

他把磨刀石藏了起来，所以当刀片需要磨快的时候， 他们不得不去寻找它。

But if this is the first time you've sharpened your knives in a decade, you'll probably need to use a whetstone.

但如果这是你十年来第一次磨刀， 你可能需要使用磨刀石。

The very next day Yeobright went to Humphrey's cottage, and borrowed of him leggings, gloves, a whetstone, and a hook, to use till he should be able to purchase some for himself.

第二天约布赖特就来到汉弗莱的茅屋，问他借了绑腿、手套、磨刀石和钩刀，想一直用到他能自己买这些东西的时候。

When he was satisfied with the edge of his blade, he slipped the whetstone into his hip pocket and began to swing his scythe, still whistling, but softly, out of respect to the quiet folk about him.

当他对自己的刀刃感到满意时，他将磨刀石塞进裤兜，开始挥动他的镰刀，同时还在吹口哨，但声音很小，这是出于对周围安静的人们的尊重。

After they choked down their meagre supper, Meera sat with her back against a wall, sharpening her dagger on a whetstone. Hodor squatted down beside the door, rocking back and forth on his haunches and muttering, " Hodor, hodor, hodor" .

吞下这顿难以下咽的晚餐后，梅拉背靠墙壁坐下，用磨石打磨匕首。阿多在门边蹲下，耸起肩膀前后摇晃，一边念叨：" 阿多，阿多，阿多。"