求翻译：亲爱的Professor jnhnson:您好！我是光明中学的学生会主席李明。我希望您能在九月二十五日下午四点来我们学校给我们开个讲座，教导我们如何提高英文写作水平、希望你能给我们十五分钟的问答时间，在讲座结束后将会举办个简单的晚宴…希望您能准时到来是什么意思？

Dear Professor jnhnson: You are good! I am bright middle school's student association President Li Ming.I hoped you can 4 pm come our school in September 25 to open a course to us, will teach how we do raise English writing level, hoped you can give us 15 minute question and answer time, had finished after the course will be able to hold a simple evening banquet…Hoped you can arrive punctually