Chloasma is skin disease of pigment degeneration with limited yellowish brown or light brown pigmentation on the face.Its border may be clear or indistinct.是什么意思_Chloasma is skin disease of pigment degeneration with limited yellowish brown or light brown pigmentation on the face.Its border may be clear or indistinct.在线翻译_英语_读音_用法_例句