同根派生 gold plate相关词英汉例句Dunne knew this because as a jeweller he often bought old gold and melted it down.鄧恩知道斯特朗有些值錢的舊金器，因爲他是一個珠寶商，經常收購這些東西，然後把它們重新廻爐。gold plate更多例句