Definition: used before numbers that refer to periods of ten years Level: B2
我父母出生在六十年代。
My parents were born in ___the sixties.
二十世纪五十年代的生活非常不同。
Life in ___the 1950s was very different.
那种音乐风格在七十年代末很流行。
That music style was popular in ___the late seventies.
