The concept of a multiverse arises naturally from the inflationary model of the universe.
生命中你有许多机会闭紧嘴巴。
劳动力的培训和提高是提高生产力的有效途径。
找到一颗类似地球的行星的可能性,正是推动我们进行系外行星研究的热情所在。
"I want to write books that make children think and feel."
The only limits in life are the ones you make.