n.什么都没有穿; 裸体（非正式用语）( birthday suit的名词复数 )
The little native children ran about the beach in their birthday suits.───当地的小孩子光身子在沙滩上跑来跑去.
The little children are playing in the swimming - pool in their birthday suits.───这些儿童一丝不挂地在游泳池中玩耍.
The little boys were swimming in their birthday suits.───那群小孩在光着屁股游泳.
Babies are born wearing their birthday suits.───婴儿就是穿着“生日礼服”出生的.
Some wore swimsuits, others used birthday suits.
birthday suit───裸体
birthday boys───生日男孩
birthday cakes───生日蛋糕
birthday cards───生日卡
birthday girl───n.生日女郎（电影名，等于惊婚计）
birthday girls───n.生日女郎（电影名，等于惊婚计）
birthday party───n.生日宴会
birthday wish───生日愿望
birthday presents───生日礼物