lethargy

noun

1. inactivity
showing an unusual lack of energy

e.g. the general appearance of sluggishness alarmed his friends

Synonym: languorsluggishnessphlegmflatness

2. weakness characterized by a lack of vitality or energy

Synonym: inanitionlassitudeslackness

3. a state of comatose torpor (as found in sleeping sickness)

Synonym: lassitudesluggishness

1. 慵懒；倦怠；没精打采
Lethargy is the condition or state of being lethargic.

e.g. Symptoms include tiredness, paleness, and lethargy.
症状包括疲倦、脸色苍白、没有精神。
e.g. ...the lethargy that plagued this project from its outset.
一开始就困扰着这个项目的人员懒散问题

1. 嗜眠(症)：注意缺陷多动障碍(ADHD)是儿童期常见的行为障碍之一,患病率在学龄期儿童约为5%左右约66%的ADHD患儿至少存在一种共病4.ADHD与睡眠觉醒障碍:30%左右ADHD共病睡眠和/或觉醒障碍嗜眠症(Lethargy)在临床上类似ADHD,

2. 嗜睡症：lethargic 昏睡的 | lethargy 嗜睡症 | lethargy by inducing 诱导性迷睡

3. lethargy

3. 勒;衰减系数：lethal 致命的 | lethargy 勒;衰减系数 | letter character 字母符号