Pericondensed polycyiclic
[建] 包缩合多环物的
🗣️ 情景例句
Am I older than you? You look so young.
我比你老吗？你看起来非常年轻？
One of these days,I'd like to take a vacation.
某天,我想度假。
But we won't have our big family get-together until Christmas.
但我们要等到圣诞节才会有家庭大团圆。