Middle ear infections are one of the most common childhood problems.
什么是中耳炎？ 中耳炎是儿童中最常见的疾病之一。
Diabetes is one of the most common chronic diseases of childhood.
糖尿病是儿童期常见的慢性病之一。
Atopic eczema is the most common inflammatory skin disease of childhood in developed countries.
异位性皮肤炎是已开发国家儿童中最常见的发炎性皮肤病。
Atopic eczema is the most common inflammatory skin disease of childhood in developed countries.
异位性皮肤炎是已开发国家儿童中最常见的发炎性皮肤病。
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