2N-COUNT (交易的)卖方 In a business deal, the seller is the person who is selling something to someone else. (交易的)卖方
In theory, the buyer could ask the seller to have a test carried out.
理论上,买方可以要求卖方进行一次测试。
Housing became a seller's market, and prices zoomed up.
房地产市场成了卖方市场,价格一路飙升。
3N-COUNT [adjective NOUN](畅销或滞销的)商品 If you describe a product as, for example, a big seller, you mean that large numbers of it are being sold. (畅销或滞销的)商品
The gift shop's biggest seller is a photo of Nixon meeting Presley.