The larger one at the top is a hemorrhagic corpus luteum of menstruation, and the smaller one at the bottom is involuting from a previous menstrual period.是什么意思_The larger one at the top is a hemorrhagic corpus luteum of menstruation, and the smaller one at the bottom is involuting from a previous menstrual period.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句