Cavu
abbr. 云高及能見度無限；晴朗與能見度極好（Ceiling and Visibility Unlimited）
??? 情景例句
Sorry, that's not really what I mean. What I'd like to know is...
對不起，我真的不是那意思，我想知道的是…
He did it in no time.
他馬上把那事給做了。
and found our then prevailing primitive state completely uninteresting to their own advanced knowledge.
并且發現我們地球當時普遍存在著的原始狀態同他們先進的知識相比是索然無味的。