老脑筋就像老马;如果你想保持它们的工作状态,就必须锻炼它们。
The discovery of the genetic code was a monumental step in understanding the molecular basis of life.
大型工业企业是美国经济中最强大的机构,其管理者是最具影响力的经济决策群体。
Success is not about the money you make, it's about the difference you make in people's lives.