Alltogether Beethoven wrote nine sinfonias, but most of them was wrote after he had lost his hearing.
贝多芬一个写了9部交响乐，其中大部分是在他耳聋后写的。
2
I happened to see a piano stand there in the meeting room when I was taking a rest one day. I sat down and began to play "Inventions et Sinfonias" of Bacher.