常見例句We suggest sharpening on a wet stone because it cleans the pores of the sharpener dissipates frictional heat and facilitates smooth sharpening action.我們建議使用一塊弄溼了的磨石，因爲研磨液躰能幫助清潔磨具上的孔，能散去摩擦産生的熱量，還能使磨刀的動作更加順滑。 返回 mill stone