说明：请以周利的名义给神华医院写一封感谢信。 时间：3月21日。 内容： 1．感谢神华医院治好了自己的病； 2．由于自己经济条件有限，神华医院免费为自己治疗； 3．给自己提供很多便利条件，并为自己进行

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March 21 Dear Sir This is Zhou Li a patient in your hospital. I"m writing to express my deepest gratitude to you all. First I want to thank all the doctors who cure my disease and all the nurses who take care of me. With professional knowledge and