N-PLURAL
八十几；八十多
When you talk about the eighties, you are referring to numbers between 80 and 89. For example, if you are in your eighties, you are aged between 80 and 89. If the temperature is in the eighties, the temperature is between 80 and 89 degrees.
例句
He was in his late eighties and had become the country's most respected elder statesman.
他年近九旬，已成为该国最受尊崇的政界元老。