collect dust
積塵不用/備受冷落
口語·表示閑置或無人問津
英文釋義
to remain unused or untouched for a long period of time
例句
That old guitar has been collecting dust in the corner for years.
典故來源
字面意思為積滿灰塵,比喻物品長期閑置不用,源自日常生活中的觀察。