The muscle ansa of the puborectal muscle and that of the pubococcygal muscle assume an overlapping relationship at the lateral and posterior aspects of the anal flexure.是什么意思_The muscle ansa of the puborectal muscle and that of the pubococcygal muscle assume an overlapping relationship at the lateral and posterior aspects of the anal flexure.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句