the seventies[plural] (also the '70s, the 1970s)TMC the years from 1970 to 1979 (二十世纪)七十年代 We lost touch during the seventies. 我们在70年代失去了联系。
the early/mid/late seventies In the early seventies, Sag Harbor was still a peaceful village. 在70年代初,萨格港还是一个宁静的村子。
→ the seventies at seventy(1)