No. I know how to play the piano. But I'm not good at it.
不是的。我懂得弹钢琴，但我并不精于此。
It was of you not to play the piano while I was having a sleep.
在我睡觉的时候你没有弹钢琴，真是太体贴人了。
I can play the piano and the trumpet, but not very well.
我可以弹钢琴和吹喇叭，但不是很好。
After 5 years, I still could not play the piano, so Igave up.
学了五年钢琴，我还是不会弹，所以我放弃了。
After 5 years, I still could not play the piano, so Igave up.
学了五年钢琴，我还是不会弹，所以我放弃了。
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