英语翻译我已经参加过了钢琴等级考试I've already participated in grade examination in piano.
2019-04-18
英语翻译
我已经参加过了钢琴等级考试
I've already participated in grade examination in piano.
优质解答
I've already participated in （the ）grade examination of piano.
I've already participated in （the ）grade examination of piano.