Digital hierarchy
[计] 数字分级系统, 数字体系
🧩 词语组成解析
🗣️ 情景例句
Frank, you've never played charades?
Frank，你从来没玩过哑谜？
How old do you have to be to vote in the national elections?
你要多大才能在大选中投票？
Ripe fruit falls from the trees and you never have to work.
成熟的水果从树上掉下来，人们根本无需劳动。