An isolated star has no way of replenishing its initial allotment of fuel;its life span is preordained.The more massive the star is, the hotter it is and the faster it burns itself out.

• 一颗孤立的恒星无法重新补充它内部的燃料，其寿命已经预先被决定了：恒星的质量越大，其温度越高，它将自身燃尽的速率也越快。