U-s
abbr. upper-stage 上级，顶级
🗣️ 情景例句
I just solved the mystery.
我刚刚把那个谜底解开了。
He's a manager.
他是个经理。
But I must ask my parents first. What time shall I come?
不过我必须先问问父母。我几点钟来呢？