...a flower seller.

卖花人

...Kraft, the largest seller of cheese in the United States. [+ of]

卡夫公司，美国最大的奶酪销售商

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。

The gift shop's biggest seller is a photo of Nixon meeting Presley.

这家礼品店最畅销的商品是尼克松会见猫王普雷斯利的照片。