It may take longer: I've seen some calculations that show the very lowest mass stars MIGHT last ten times that long.

我看到一些计算显示，最低质量的恒星可能会持续十倍于此的时间。

Today you learned that very low mass stars live a long time, fusing all their hydrogen into helium over a trillion years.

今天你学到了，低质量的恒星寿命很长，在一万亿年间，它们将所有的氢融合成氦。