Jimmy is trying to showBill how to skate. The blind are leading the blind.
吉米想教比尔怎么溜冰，他们俩其实是半斤八两。
2
Studies in restaurants show that the tips left by customers who pay their bill in cash tend to be larger when the bill is presented on a tray that bears a credit-card logo.
对餐馆的研究表明，当账单被放在印有信用卡标志的托盘上时，用现金付账的顾客往往会留下更多的小费。
3
Created by technology company Smart Machines, Bill is able to show human like behavior.