Well, they have a host star just like we have a sun, and so if they were able to capture more energy from this star, then that would solve their energy needs.
你看，他们有一颗宿主恒星， 就像我们有太阳一样， 那如果他们能够 从恒星中抓取更多能量， 那就可以解决 他们的能源需求。