Carboxy
n. [有化] 羧基
🗣️ 情景例句
It's all my fault. I'll try to make it up to you.
这事儿全怪我。 我会尽力补救。
How many years have you been playing pingpong?
你打乒乓球多少年了？
He added that a student had dressed up as a policeman and was playing all sorts of silly jokes on people.
还对工人说，有个学生常装扮成警察无聊地同别人开玩笑。