常見例句The steps have been ground away by the passing feet of many visitors over the centuries.這些臺堦經(jīng)過許多世紀衆(zhòng)多遊客的足踏，已經(jīng)磨損。Grinding for a test; grinding away at housework.爲考試埋頭苦讀; 埋頭做家務 返回 grind away