octogenarians
n. 八十岁到八十九岁的人
adj. 八十岁到八十九岁的
复数 octogenarians
例句
There were no conflicts at all, the police were friendly, and from octogenarians to toddlers, everybody walked in an orderly manner while shouting slogans.
这里没什么冲突,警察都很友好,从老年人到蹒跚学步的孩子,每个人都一边有序地行走,一边呼喊口号。