求翻译：亲爱的格林先生，在这我告诉你有关夏令营的英文比赛的一些事，比赛要求每个人邀请一个擅长英语的朋友做评委，因此我想到了你，英文比赛的时间在2011年8月20日，星期六上午九点到十点半，在小镇电影院举行，希望你能够参加。是什么意思？

Dear Mr Green, in which I tell you something about summer camp of the English game, game that everyone invited to a friend who is good at English do judge, so I thought of you, time of the English game on August 20, 2011, to nine o'clock in the morning on Saturday, held in the town cinema, hope you can join.