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。
2
It's not uncommon to find your tray table broken, the in-flight entertainment system not working and your seat cushion worn.
你的小餐桌坏了，飞机上的娱乐系统坏了或者座垫坏了，这些都是很常见的。
3
It was hard for me to hold a full tray with just one hand.