名詞 phlegm:

1. apathy demonstrated by an absence of emotional reactions
   同義詞：emotionlessness, impassivity, impassiveness, indifference, stolidity, unemotionality
2. expectorated matter; saliva mixed with discharges from the respiratory passages; in ancient and medieval physiology it was believed to cause sluggishness
   同義詞：sputum
3. inactivity; showing an unusual lack of energy
   同義詞：languor, lethargy, sluggishness, flatness

1. How do you pronounce p-h-l-e-g-m? Look up `phlegm' in the dictionary if you don't know.
   怎樣念p-h-l-e-g-m這個(gè)詞? 你要是不會(huì)念，可查詞典中phlegm的注音。

phlegm

n.（名詞）
Thick, sticky, stringy mucus secreted by the mucous membrane of the respiratory tract, as during a cold or other respiratory infection.
痰：由呼吸道粘膜分泌的濃稠而粘的黏液，如在寒冷或其它呼吸性感染期間
One of the four humors of ancient physiology, described as cold and moist and thought to cause sluggishness, apathy, and evenness of temper.
懶散，遲鈍；冷漠：古代生理學(xué)的四種體液之一，被描述為冷淡和傷感，被認(rèn)為由懶散、冷漠和性情平和引起
Sluggishness of temperament.
性情遲緩
Calm self-possession; equanimity.
冷靜自控，沉著

來源：
Middle English fleume [mucous discharge, the humor phlegm]
中古英語 fleume [粘液分泌，體液]
from Old French
源自 古法語
from Medieval Latin phlegma, flegma
源自 中世紀(jì)拉丁語 phlegma, flegma
from Late Latin phlegma [the humor phlegm]
源自 后期拉丁語 phlegma [體液]
from Greek [heat, the humor phlegm]
源自 希臘語 [熱量，體液]
from phlegein [to burn] * see bhel-
源自 phlegein [燃燒] *參見 bhel-

【引伸】
phlegm.y
adj.（形容詞）