Unsolveds
(unsolved 的复数) a. 未解释的, 未解决的
🗣️ 情景例句
He is an orphan, so he is not sure which family name he should have.
他是个孤儿，因而不知道他自己姓什么。
As you all know.
你们知道。
Slow down!
慢点！