40字 有点短 哈哈.但没关系我帮你造个简单的~
Everyone has their own hobby, so do I. I love to play chess so I joined my school chess club. When I am playing chess, I can improve my concentration and skill in playing chess. Besides that, chess club also improves my memory skill, and creative thinking, this help me to solve problem easily in my life. Lastly, chess club let me find many new friends and this improve my social skills too. Therefore, I love chess club so much.