Mucus is a thick liquid that is produced in some parts of your body, for example the inside of your nose.
英汉词典释义
n.
<生>(由黏膜分泌出的)黏液
Coughing clears the lungs of mucus.咳嗽能清除肺里的黏液。
英英词典释义
Noun
1. protective secretion of the mucous membranes; in the gut it lubricates the passage of food and protects the epithelial cells; in the nose and throat and lungs it can make it difficult for bacteria to penetrate the body through the epithelium