It's the fiftieth anniversary of the discovery by Francis Crick and James Watson of the double helix structure of the DNA molecule.
It's the fiftieth anniversary of the discovery by Francis Crick and James Watson of the double helix structure of the DNA molecule.
它离弗朗西斯·克里克和吉米·沃森发现DNA分子双螺旋结构整整五十周年。