When we count up the lithium atoms held in stars, there is only one-third as much of the lithium-7 isotope as there should be.
当我们算出了在各个恒星中锂原子的总数，同位素锂- 7的总量仅是在那里应有量的三分之一。
2
But after technological breakthroughs in the development of long-lasting lithium-ion batteries, soon it may not just be Hollywood stars who are zipping around in zero-emission automobiles.
但是随着长效锂离子电池的技术突破，驾驶高速度的零排放汽车可能不再是好莱坞明星的专利了。
3
Improved observations of stars suggest they contain even less lithium-7 than previously thought.