wan

名词 wan:

1. a computer network that spans a wider area than does a local area network
   同义词：wide area network

动词 wan:

1. become pale and sickly

形容词 wan:

1. (of light) lacking in intensity or brightness; dim or feeble
   同义词：pale, pallid, sick
2. abnormally deficient in color as suggesting physical or emotional distress
   同义词：pale, pallid
3. lacking vitality as from weariness or illness or unhappiness

1. Her face wan after her long illness.
   她久病后脸色变得苍白。
2. A wan expression.
   惨淡的表情
3. The child looked pale and wan.
   这孩子看上去脸色不好，一副有病的样子。

wan

adj.（形容词）
wan.ner,wan.nest
Unnaturally pale, as from physical or emotional distress.
苍白的：由于身体或精神不适等而致的病态的苍白
Suggestive or indicative of weariness, illness, or unhappiness; melancholy:
惨淡的：指示疲劳、疾病或郁闷之象的；郁郁寡欢的：
例句：
a wan expression.
惨淡的表情

v.intr.（不及物动词）
wanned,wan.ning,wans
To become pale.
变苍白

来源：
Middle English [pale, gloomy]
中古英语 [苍白的，阴暗的]
from Old English wann [gloomy, dark]
源自 古英语 wann [阴暗的，黑的]

【引伸】
wan.ly
adv.（副词）
wan.ness
n.（名词）