Uca
abbr. upper control area 上部控制区
🗣️ 情景例句
It's our first date.
这是我们的第一次约会。
Which one is easier?
哪一个是较简单的？
She struck the keys too hard and two of the strings were broken.
她在击琴键时用力过猛，损坏了两根琴弦。