1.N-SING 单数名词 售后市场；（尤指汽车的）零配件市场 The aftermarket is all the related products that are sold after an item, especially a car, has been bought.
【STYLE标签】：BUSINESS 商
The company serves the national automotive aftermarket with a broad range of accessory and recreational-vehicle products. 该公司为全国汽车零配件市场提供各种零配件和休闲旅游车产品。
2.N-SING 单数名词 后市，二级市场（指股票发行之后的交易） The aftermarket in shares and bonds is the buying and selling of them after they have been issued.
【FIELD标签】：BUSINESS 商
It's illegal to get into a formal agreement with investors that they'll buy in the aftermarket. 与投资者达成正式协议、允许他们在后市上买入的做法是非法的。