主题：【原创】Kroger Card -- coo

Ted was a graduate student of the lab I worked before. He had a habit to help him focus when reading research papers that he liked to fiddle around with two soft balls in one of his hands. Usually those two soft balls were put on his desk. The lab members all knew the balls were Ted's toys for keeping him awake when he was doing reading. They also played them around for a while occasionally for fun. One day, Ted left them home when it happened an Indian girl student of the lab had a very difficult paper to read. In order to focus herself on the paper, she decided to follow Ted's way. She searched around Ted's desk for those balls for a while but could not find them. So she asked Ted, who was working with his computer to write a paper, "Ted, the paper I was reading is so hard. I need hold your two balls for a while to ease my pain of focusing. Where are they, your two balls?"