Dear Uncle, Thank you for giving me a bike. I usually ride the bike in the park or in the playground on weekends. I love it very much, because riding it is good for my health and it looks very cool! By the way, I can show you some tricks which I learnt from a trick cyclist next time you come to see me. Best wishes to you and your family. Yours sincerely,XXX 中文:亲爱的叔叔:谢谢你送给我的自行车。在周末我常常骑着它在公园里或操场上玩。我非常喜爱它,因为骑自行车对我健康有好处并且看起来也很棒!顺便提一下,下次你来看我的时候我可以给你看看我从一位特技自行车手那里学来的几个自行车特技。衷心祝福你和你的家人。 你真诚的,XXX