Cavu
abbr. 云高及能见度无限；晴朗与能见度极好（Ceiling and Visibility Unlimited）
🗣️ 情景例句
Do? I don't know.
读什么 ？我不知道。
I'll be back in 5 days.
我五天之后回来。
We have a problem with your order.
你订的货有点问题。