表现为黄豆大小的圆形斑疹，略带灰色，好发于颈、胸、背部，其病情夏天重、冬天轻。

Expression is the circular macula of soybean volume, take gray slightly, good hair at neck, bosom, back, its illness summer is heavy, light in the winter.

youdao

表现为黄豆大小的圆形斑疹，略带灰色，好发于颈、胸、背部，其病情夏天重、冬天轻。

Expression is the circular macula of soybean volume, take gray slightly, good hair at neck, bosom, back, its illness summer is heavy, light in the winter.

youdao