We found multiple star systems all over the place.

我们在宇宙中发现了多个恒星系统。

Regulus is actually a multiple star, composed of at least four stars close together.

Regulus实际上由至少四个联合在一起的星星组成。

Although the numbers are a little bit uncertain, something like a third to a half of all stars in the sky are part of a binary or multiple star system.

虽然数字有点不确定，但天空中大约三分之一到一半的恒星都是物理双星或多星系统的一部分。