英語中對於身材體型（body shape）的各種描述中，「胖」和「瘦」應該是最為常用的。但是，在英語中，對於「胖瘦」的描述，可不僅僅只有fat和thin。今天，我們來梳理梳理各種「瘦」的英語詞彙。
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」，但一般都用於消極含義）:
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「皮包骨頭的；很瘦的」，與thin相比瘦的程度稍大，而且多用於口語中）:
I don’t like his looks – he’s too skinny. （我不喜歡他的長相——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. （這個小孩瘦得只剩皮包骨頭了。）
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」，大多表示臉部瘦削，有時是因為生病所致）:
Her face was gaunt and grey. （她臉色灰暗憔悴。）
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」，這種「瘦」往往是因為生病或極度飢餓所致，而且存有身體健康危險）:
Some of the patients were quite emaciated. （一些病人非常瘦弱。）
6）Probably the most common of these is slim. If someone is slim they are quite thin in a way that is attractive:
Charlotte was looking lovely and slim in the photos. （照片裡的夏洛特看起來身材苗條，惹人喜愛。）
7）Other synonyms for 『slim』 have an extra meaning in addition to 『having little fat』. Slender, for example, means 『slim and graceful』（苗條的；修長的）:
She was small and slender, like a dancer. （她身材嬌小苗條，像個舞者。）
8）Lean describes someone who is slim and strong（精瘦的；無脂肪的）:
Long-distance runners are usually fairly lean. （長跑運動員往往很精瘦。）
9）Petite, which is positive in tone,means 『short and slim』 and is only used for women and girls（嬌小的，只用於女性）:
I vaguely remember her as being dark and petite. （我模模糊糊記得她皮膚淺黑,身材嬌小。）
10）Slight, meanwhile, which is neither positive nor negative, means 『thin and delicate』（纖細的；纖弱的）:
We watched her slight figure cross the street. （我們看著她纖弱的身影穿過街道。）
1. underweight
Okay, so if you're underweight your body is depleting its fat stores, and therefore that may make you unhealthy.
你的看法是如果體重過輕,身體會把儲存的脂肪消耗盡,因此導致了健康問題
2. skinny
Experts say that many women feel worse about themselves after seeing skinny models in campaigns.
專家們說許多女性看到廣告裡那些瘦削的模特後感覺會更糟。
3. bony
The creature is white, furry, and bony.
白色的小東西毛茸茸的，很是骨感.
In the swimming pool, he likes to stare at the slim girls with bedroom eyes. 在遊泳池的時候，他喜歡色色的盯著那些苗條的女孩子看。Just think - in a few short weeks a beautiful, slender, athletic body can be yours.只要想想看:在很短的幾個星期後你就會擁有漂亮、苗條、健美的身體了。It keeps me in good shape. Top athletes have to be very fit.3. athletic physique
She was praised for her strong arm and athletic physique. she advocates healthy eating.
米歇爾倡導健康飲食，她健美的臂膀和運動員般的體格常受到褒揚。
英語中有許多詞語，以不同的形象形容或比喻瘦：
a walking skeleton 瘦到「皮包骨」
as thin as monkey 跟猴子一樣瘦
as thin as lath of rail 像鐵軌的枕木一樣瘦
as thin as a shadow 跟影子一樣瘦
as thin as six o'clock（時針和分針成上下一直線，簡直太形象了）
wiredrawn 鐵絲做的
thread-like 細得像一根線
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