Uca
abbr. upper control area 上部控制区
🗣️ 情景例句
She was playing with the idea of studying abroad.
她有出国留学的念头，但并非很认真。
I don't know where I've seen him before.
我不晓得在哪儿见过他。
If you hate science stories, you are unlikely to enjoy reading them in English.
如果你不喜欢读科学小品，你很可能也不会喜欢读英文的这类图书。