劍橋詞典an area where there was previously a lot of industry but where most factories are now closed （曾經(jīng)是工業(yè)重地但絕大部分工廠已經(jīng)關(guān)閉的）鏽帶 a small town in the heart of the rustbelt 鏽帶中央的一個小鎮(zhèn) 返回 rustbelt