( solar systems)
The solar system is the sun and all the planets that go round it.
N-COUNT : usu sing , oft the N , poss N
( solar systems)
The solar system is the sun and all the planets that go round it.
N-COUNT : usu sing , oft the N , poss N
Collins COBUILD Advanced Learner's English Dictionary. Английский словарь Коллинз COBUILD для изучающих язык на продвинутом уровне. 2006