languid 懒鬼的
Lacking energy or vitality; weak
Showing little or no spirit or animation; listless
Lacking vigor or force; slow
adj. 倦怠的；呆滞的；无精打采的，懒洋洋的；软弱无力的

例句：
The illness made him feel languid.
疾病使他感到倦怠乏力。

languor
Lack of physical or mental energy; listlessness. See Synonyms at lethargy.
A dreamy, lazy mood or quality
Oppressive quiet or stillness.
n. 疲倦；无精打采；呆滞
vi. 变得衰弱无力

languorous
producing or tending to produce languor <a languorous climate>
full of or characterized by languor
adj.怠惰的；无力的

languish
To be or become weak or feeble; lose strength or vigor.
To exist or continue in miserable or disheartening conditions
To remain unattended or be neglected
To become downcast or pine away in longing
vi. 憔悴；凋萎；失去活力；苦思，焦虑

例句：
The leaves languished from lack of water.
树叶因缺水而枯萎。
The mother languished for the sight of her daughter.
母亲苦苦地渴望见到女儿。

趣味单词

bicker 必然会渴
To engage in a petty, bad-tempered quarrel; squabble. See Synonyms at argue.
To flicker; quiver
A petty quarrel; a squabble.
vi. 闪动；斗嘴；潺潺而流
n. 吵嘴；口角；（水的）潺潺声

例句：
The two children were always bickering.
那两个孩子总是争吵。