I experienced a lot that day. We had a group of six people to participate in the competition. At beginning, we feel very excited. Equipment is provided by Kevin, we cannot bring the tool. They were the first to take part in the game, so we were all confused and didn't know what to do. After a while, Kevin projection give us lists the subject, when we see the topic are astonished the. Girls began to make the bridge. And the only boy in our group is responsible for the problem. Finally, we succeeded. Although it is not very beautiful, but we think it is very strong, we are very fond of this work. Although we have not won the award, but we are still very happy. Thanks to Kevin for giving us a chance like this.