Originally, humor meant liquid or fluid in Latin, denoting primarily blood, phlegm, black bile, and yellow bile in medical terms.

幽默一词起源于拉丁语，意为液体、流体，医学上指代血液、粘液、黑色胆汁与黄色胆汁。

The graft versus host disease here is marked by yellow-brown collections of bile in the canaliculi, as well as chronic inflammatory cells within the liver parenchyma.

移植物抗宿主疾病反映的是胆小管内黄棕色的胆汁淤积，同时肝实质慢性炎细胞浸润。

The upper small intestine bile contains bilirubin and biliverdin, make defecate is green and yellow.

小肠上部的胆汁含有胆红素和胆绿素，使大便呈黄绿色。