To understand how gravity works across the universe, we need look no further than the ground beneath our feet.

想弄明白引力在宇宙中的作用，其实只需要看看脚下的地面就可以了。

You need look no further than commercial access to space.

您只需看看商业进入太空就可以了。

To see what unchecked intolerance looks like, we need look no further than ISIS and the atrocities it has committed.

要了解不受约束的不容忍是什么样子，我们只需看看 ISIS 及其犯下的暴行即可。