【参考范文】

　　The scientist made a great breakthrough in the area.His colleagues held a party to congratulate him on his achievement.At the party，his colleagues asked him to tell something about his breakthrough.He said he had referred to many books，accumulated a lot of experience and made many experiments before it and that he didn't make any discovery until he finished the eighth experiment.He also said that though he had made a great achievement，he really felt tired and that he needed to have a one­month off.