These humours were bodily fluids - blood,  phlegm, yellow bile and black bile. Yum!

这些体液是体液——血液、痰、黄胆汁和黑胆汁。 百胜！

Humoral medicine argued that all illnesses stemmed from imbalances of the four humors believed to make up the physical body: black bile, yellow bile, phlegm, and blood.

体液医学认为，所有疾病都源于被认为构成身体的四种体液失衡：黑胆汁、黄胆汁、痰和血。