urorubinogen

例句：

1. 1. The patient's urine test showed high levels of urobilinogen.
   患者的尿液测试显示高水平的尿胆素原。
2. 2.Urobilinogen is a byproduct of the liver's metabolism of bile pigments.
   尿胆素原是肝脏代谢胆汁色素的副产品。
3. 3. During the dark period, the body produces more urobilinogen to help with vision.
   在黑暗时期，身体会产生更多的尿胆素原以帮助视力。