各种“瘦”
1、Probably the most commonly used adjective to describe someone who has too little fat is thin. ‘Thin’ is often used in a negative way（thin表示“瘦”，但一般都用于消极含义、:
She’s very pretty, but she’s too thin. （她很漂亮，但太瘦了。、
2、Skinny, a slightly informal word, means very much the same（skinny表示“皮包骨头的；很瘦的”，与thin相比瘦的程度稍大，而且多用于口语中、:
I don’t like his looks – he’s too skinny. （我不喜欢他的长相——他太瘦了。、
3、Even thinner than ‘skinny’ is scrawny (also a slightly informal word). Someone who is scrawny is so thin that their bones stick out（scrawny表示“骨瘦如柴的；瘦骨嶙峋的”、:
He was a scrawny little kid. （这个小孩瘦得只剩皮包骨头了。、
4、Gaunt, meanwhile, is used to describe a very thin face, sometimes a face that is thin because a person is ill（gaunt表示“憔悴的”，大多表示脸部瘦削，有时是因为生病所致、:
Her face was gaunt and grey. （她脸色灰暗憔悴。、
5、The adjective emaciated describes someone who is dangerously thin, usually through illness or extreme hunger. It describes the whole of the body（emaciated表示“瘦弱的；消瘦的”，这种“瘦”往往是因为生病或极度饥饿所致，而且存有身体健康危险、:
Some of the patients were quite emaciated. （一些病人非常瘦弱。、