常見例句The steps have been ground away by the passing feet of many visitors over the centuries.這些臺(tái)階經(jīng)過許多世紀(jì)眾多游客的足踏，已經(jīng)磨損。Grinding for a test; grinding away at housework.為考試埋頭苦讀; 埋頭做家務(wù) 返回 grind away