如果有遇到困难，先离开琴一会儿，直到你做好继续弹奏的准备。
If you get frustrated, step away from the piano for a few minutes until you are ready to play again.
即先租用半年使用，如认可就不用退还此琴，也可换购其他琴，您半年租金全免。
That is to rent the use of six months, if not authorized return on this piano can also substitute other piano you six months free rent.
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