with obj.
1- sharpen with a whetstone用磨刀石磨。
1.1
- usu. be honed make sharper or more focused or efficient使更锋利（或更强烈、更集中、更有效）：
their appetites were honed by fresh air and exercise.
新鲜空气和运动使他们的食欲更加旺盛了。
1
- a whetstone, especially one used to sharpen razors（细）磨石, 油石（尤指用于磨剃须刀）。
1.1
- mass noun the stone of which whetstones are made（制造磨刀石的）磨石块。
USAGE
See usage at HOME.
词源
Middle English: from Old English hān 'stone', of Germanic origin; related to Old Norse hein.