trade places

(US)change places

(美)更換地方

trade down (或 up)

sell something in order to buy something similar but less (or more) expensive

為購買價格更低或更高的類似物而出售

trade something in

exchange a used article in part payment for another

以舊物折價貼換同類新物

she &B{traded in} her Ford &B{for} a Land Rover.

她把舊福特車折價添錢買了一輛“陸虎”越野車。

trade something off

exchange something of value, especially as part of a compromise

（尤指作為讓步而）交換某物

the government &B{traded off} economic advantages &B{for} political gains.

政府以犧牲經濟利益來換取政治好處。

trade down

To trade something in for something else of lower value or price

出售…以換取：賣掉某物以購入低價值或低價格的其它東西

bought a new, smaller car, trading the old one down for economy.

為了節約，賣掉了舊車買了一輛更小的新汽車

trade in

To surrender or sell (an old or used item), using the proceeds as partial payment on a new purchase.

以（舊貨）抵購（新貨）：放棄或賣掉（一舊的或用過的物品），將所得款項用作一購入物品的部分賬款

trade on

To put to calculated and often unscrupulous advantage; exploit

利用：獲得精心策劃且通常無恥的利益；利用

children of celebrities who trade on their family names.

利用他們家庭名望的名人后代

trade up

To trade something in for something else of greater value or price

以（舊貨）換購更高價值的物品：賣掉某物以購入高價值或高價格的其它東西

The value of our house soared, enabling us to trade up to a larger place.

我們這房屋的價值上揚，使得我們可以賣掉它購買一個更大的地方