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你(Li Yuan)的朋友(Jack)邀请你暑期到他家乡农村去度假。写封信委婉拒绝。
信的内容如下：对邀请表示感谢;不能如愿的原因;提出弥补的方式。
Dear Jack,
Thank you so much for your warmhearted invitation of spending my summer vocation at your hometown, a quiet and beautiful country. I have been waiting for it so long. But, unfortunately, I have to go back my own hometown, a hot and noisy city, for my sister just got an admission from a university and she is preparing for it. As an elder brother, I must help her in both mental and physical ways.
So sorry for missing the good chance to join you at your home. Next year, we will spend summer together, our summer.
Send my greetings to your parents, please. I'll visit them next year.
Take care !
Li Yuan