半裸用英语怎么说

半裸在英语中可以翻译为 half-naked 或 semi-naked。来源是拉丁语的"semi"，意思是"半"，和英语的"naked"，意思是"裸体的"。
例句：
She was lying on the beach in a semi-naked state. (她躺在海滩上半裸着。)
The half-naked man ran through the streets, screaming for help. (那个半裸的男人在街上奔跑，大声呼救。)
另外，如果您想表达"裸体"的意思，可以用 naked 或 nude。
例句：
The model posed for the artist in the nude. (模特为画家脱光衣服摆姿势。)
He was arrested for skinny-dipping in the public pool. (他因在公共游泳池里裸泳而被捕。)