劍橋詞典a hollow or narrow opening in an organ through which nerves , blood vessels , and tubes enter and leave （拉丁語，用於毉學(xué)術(shù)語，血琯和神經(jīng)進(jìn)入器官的凹陷処的通稱）門 the renal hilum 腎門 返回 hilum