1
in [possessive] birthday suit
非正式用语，意为‘裸体’。
He was in his birthday suit.
他全身赤裸。
裸体；一丝不挂
先理解核心含义，再看它在真实句子里的用法。
裸体；一丝不挂
the naked body; nudity
He was in his birthday suit.
他全身赤裸。
非正式用语
除了比喻或习语用法外:参见生日,衣服。
Used other than figuratively or idiomatically: see birthday, suit.
The toddler ran around the garden in his birthday suit after his bath.
那个幼儿洗完澡后光着身子在花园里跑来跑去。
He opened the door in his birthday suit, not expecting any visitors.
他光着身子打开门，没想到会有访客。
Don't worry about the little kids; they are having a great time in their birthday suits at the pool.
别担心那些小孩，他们光着身子在泳池里玩得很开心。
非正式用语，意为‘裸体’。
He was in his birthday suit.
他全身赤裸。
She appeared in her birthday suit on stage.
她赤身裸体出现在舞台上。
He was caught in his birthday suit by the neighbors.
他被邻居撞见一丝不挂。
Not this
I bought a new birthday suit for the party.
Use this
I bought a new suit for the birthday party.
‘birthday suit’ 是习语，意为‘裸体’，不是‘生日穿的衣服’。这里应使用字面意义的‘suit’（西装）或‘outfit’。
Not this
The doctor asked me to remove my birthday suit for the examination.
Use this
The doctor asked me to remove my clothes for the examination.
‘birthday suit’ 是非正式用语，在正式或医疗场合不适用。应使用中性词‘clothes’或‘garments’。
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非正式用语，常用于"in one's birthday suit"结构中
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY.