apathy demonstrated by an absence of emotional reactions
expectorated matter; saliva mixed with discharges from the respiratory passages; in ancient and medieval physiology it was believed to cause sluggishness
inactivity; showing an unusual lack of energy;
"the general appearance of sluggishness alarmed his friends"
phlegm的用法和樣例：
例句
用作名詞 (n.)
When you cough do you bring up any phlegm? 你咳嗽時帶痰嗎?
When did you first notice blood in your phlegm? 你什麼時候開始發現你的痰里有血的?
He has shown considerable phlegm in facing the crisis. 他在面對危機時表現得相當冷靜。
but they endured the discomfort with true British phlegm, talking little, and scarcely able to catch a glimpse of each other. 但是，他們以英國人慣有的沉著忍受著這種顛簸。有時候他們談上一兩句，有時候只是相互看看。
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