discharge (phlegm or sputum) from the lungs and out of the mouth
Do not expectorate on the sidewalks. 不要在人行道上吐痰。
As Tom wended to school after breakfast, he was the envy of every boy he met because the gap in his upper row of teeth enabled him to expectorate in a new and admirable way. 当汤姆吃过早饭去上学的时候，在路上遇到的每个孩子都羡慕他，因为他上排牙齿的缺口能够使他用一种新的方法吐唾沫。
A woman expectorated blood violently as an effect of the experiment.