我今天打得不太好——我生疏了。

I didn't play very well today - I ___am ___out ___of ___practice.

我认为在俱乐部打球对我来说是一个很好的机会，以免生疏。

I think playing in the club will be a great opportunity for me so as not to ___be ___out ___of ___practice.

如果你不经常弹钢琴，你很快就会生疏。

If you don't play the piano regularly, you will soon ___be ___out ___of ___practice.