湿疹是一种常见的皮肤病，通常具遗传性。Eczema is a common skin complaint which often runs in families.口吃很可能是一种遗传性缺陷。Stammering is probably an inherited defect.遗传性疾病治疗起来很困难.It's very difficult to treat genetic diseases....
Proliferation of lymphocytes in lacrimal and salivary glands may cause bilateral painless enlargement.泪腺和唾液腺淋巴细胞增生,可引起两侧腺体无痛性肿大.House-hunting is in fact relatively painless in this region...在这个地区找房子事实上相对比较容易。The operatio...