When I grew up, I became a professional astrophysicist.长大之后, 我成了一名职业的天体物理学家.Experimental Astrophysicist George Smoot is an active researcher in observational astrophysics and cosmology.试验天体物理学家乔治-斯莫特是一位在活跃天体物理学和宇宙学领域非常活跃...
It is also worth tagging on an extra day or two to see the capital.为了看看首都,再多个一两天也是值的。Professor Orr has developed interesting ways of tagging chemical molecules using existing laboratory lasers.奥尔教授发明了用现有实验室激光设备给化学分子做记号的种...