so·lar sys·tem
noun/ˈsəʊlə sɪstəm/
/ˈsəʊlər sɪstəm/
- the solar system[singular] the sun and all the planets that move around it
太阳系 - [countable] any group of planets that all move around the same star
类太阳系 - We don’t know how many solar systems there are in each galaxy.
我们不知道每个星系中有多少个太阳系。
- We don’t know how many solar systems there are in each galaxy.