词汇	内源性尿氮
释义	内源性尿氮 endogenous urinary nitrogen; EUN
随便看	it be availiabel that it be a wonder that it be believed that it be better that It be beyond my power to arrange the meeting it be calculated that It became a household conversation piece It became famous by word of mouth It became fashionable to wear glasses It became Petrograd in 1914 and leningrad in It became the first reusable vehicle in space it be certain that It beckons me forward with its colorful swirl it be claimed that it be clearing up It be clearing up now it be clear that It become a society electrophoresis it becomes a nice sorbet it becomes certain whether It becomes difficult to breath here It becomes quite popular it becomes solid it be common practice that it be common sense that