A small,white or yellowish cystlike mass just below the surface of the skin,caused by retention of the secretion of a sebaceous gland.是什么意思_A small,white or yellowish cystlike mass just below the surface of the skin,caused by retention of the secretion of a sebaceous gland.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句