We only have one earth, but this unique earth is not simple. There are many things need people to understand, to solve. Let me take illness as an example. Everyone will get ill, such as catch a cold, have a fever, cough, sugar diabetes and so on. These diseases are so common. As people have paid attention on them, anyone who gets any disease of them would not have to worry about too much. They will be cured at last. However, there are some rare diseases, which not many people realize. Some people fracture head touched on the bone, some people all body is white, some people is difficult to control bleeding once he falls to bleed, some people’s all body muscle is weakness and atrophy. The chance to have those kinds of diseases is one in a million. But it is hard for them to be diagnosed and even they were diagnosed, the cure is limited and expensive. Those poor people need the notice of the society. They need to be treated, to be cared and to be understood. Help them, please.

我們只有一個地球，但這唯一的地球并不是那么簡單。有很多事情需要人們?nèi)チ私猓ソ鉀Q。讓我以疾病為例吧。每個人都會生病的，如感冒，發(fā)燒，咳嗽，糖尿病等。這些疾病都是很常見的。由于人們對這些疾病的關(guān)注，不管是誰得了其中一種疾病都不用太擔(dān)心。他們最后都會被治愈的。然而，有一些罕見的疾病卻沒多少人知道。有的人骨頭一碰就骨折,有的人全身都是白色的,有的人一摔跤出血就很難控制,有的人全身肌肉萎縮無力。患這些疾病的幾率只有萬分之一。但它們卻很難被診斷出來，即使診斷出來了，治療方法也是有限的，費(fèi)用也是昂貴的。那些可憐的人需要得到社會的關(guān)注。他們需要治療，需要關(guān)注，需要理解。幫幫他們吧。

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