Una corda
[意][音]用柔音踏板(的), 用独弦(的)
🧩 词语组成解析
abbr. 联合国协会（United Nations Association）
🗣️ 情景例句
You get an a for effort.
你尽了最大的努力。
Why didn't you contact me?
为什么你不和我联系？
Jim ran very fast, but Yu Yan from Class 1 ran faster. He began to catch up with Jim.
吉姆跑得非常快，但是1班的余延跑得更快。他开始赶上吉姆。