A：I'd like to buy a bottle of Centrum, a tooth brushes.我要买一瓶善存、一个牙刷。
B：Centrum? We have bottles of thirty and one hundred tablets. Which kind do you want?善存?我们有30粒装和100粒装的。你要哪一种?
A：Give me one bottle of thirty tablets.我要30粒装的。
B：And what kind of toothbrushes would you like?你要哪种牙刷?
A：Can I have a look at them?我可以看看吗?
B：Sure. This brand is supposed to be very good, but they're expensive. Those are new products. They come in several colors and sizes. There is also hard, soft, and medium.当然可以。这个牌子的牙刷不错，不过也很贵。这些是新产品，有各种颜色与大小。还有分硬毛、软毛，以及软硬适中三种。
A：Are they cheaper?有比较便宜吗?
B：This one is 5% off. That one has no reduction, but you can get a free tube of toothpaste with six toothbrushes.这种打九五折。那种没打折，不过买6支免费送一支牙膏。