Dear John,
亲爱的约翰：
Long time no see, how is your summer vacation? I’m really sorry for writing so late. I have been too busy at this moment. I am happy to hear that you have traveled to Tibet at this summer holiday. How I wish I could go there with you！
好久不见，你的暑假过得还好吗？很抱歉那么晚才写信给你。这段时间我真的太忙了。我很高兴听说暑假你去了西藏旅游。我真希望我也和你一起去。
Let me tell you something about my summer holiday. My summer holiday is rich and colorful. My parents take me to Hong Kong. That’s a beautiful place. I buy a lot of funny things at there. Such as pretty dresses, cute dolls and the snacks I never eat before. I really want to stay there and never come back! In a word, I really appreciate the life there. 
让我告诉你我的暑假趣事吧。我的暑假过得丰富多彩。我父母带我去了香港。那是个美丽的地方。我在香港买了很多新奇的玩意。比如漂亮的裙子，可爱的娃娃和一些从来没有吃过的零食。我真想待在那里再也不回来了。一句话，我喜欢那里的生活。
I’m really looking forward to your reply!
我很期待你的回复！