Wherever I drove my old car over 55 miles per hour ,it vibrated terribly,so I decided to sell it.My first customer wanted to buy the car,and I battled with my conscience over whether or not to tell him of the vehicle's problem.Finally I did the right thing.Expecting him to drop the deal,I was surprised by his reply.
"That's okay," he said."I'm buying this car for my daughter.If she complains about a vibration,I'll know she's driving too fast."
Notes:
(1) advantage n.优点；好处
(2) vibrate v.震动；颤动
(3) conscience n.良心
(4) deal n.交易；成交