短語詞組短語etc harmlessly 無害地amuse harmlessly 無惡意地消遣stare harmlessly 無惡意地注視Harmlessly Degrade 無害降解Pollution Sludge Harmlessly Multipurpose use 污染污泥無害化綜合利用domestic garbage was harmlessly treated 生活垃圾無害化處理 返回 harmlessly