Did you make any long distance calls this morning, or did you sign for your breakfast?
您今天早上没有打长途电话或吃早餐记账?
You'll solve the problem if you concentrate upon it.
如果全神贯注,你就会解决这个问题。
In their efforts to persuade us to buy this or that product, advertisers have made a close study of human nature and have classified all our little weaknesses.