sale n．銷售，銷售額

例句：The merchant's cash sales for the day were $300.

那商人一天有300元的現金售貨收入。

retail n．零售，零售的 v．零售，轉述adv. 以零售方式

例句：Fred does wholesale business, while his brother is engaged in retailbusiness.

弗瑞德經營批發生意，他弟弟則經營零售生意。

discount n．折扣

例句：On production of your membership card, you will receive a discounton purchases.

持會員證購物可享受折扣優待。

commodity n．日用品

例句：The economy of this country is heavily dependent on its exports ofagricultural commodities.

這個國家的經濟很大程度上依靠農產品的出口。

transaction n．辦理，處理，學報，交易，事務

例句：Dennis's failure in this transaction was due to nothing else thanhis own carelessness.

開尼斯在這筆交易中的失利完全是由于他自己的粗心大意。