Complex sentence: "Cambodia" is the fourth single by British singer Kim Wilde released at the end of 1981; the year in which Wilde had already scored three highly successful hit singles and a best-selling debut album.
Split into simpler sentences: Cambodia is the fourth single by British singer Kim Wilde. It was released at the end of 1981; a year in which Wilde had already scored three highly successful hit singles and a best-selling debut album.