“校花”的英文说法最常见的有school babe和campus belle两种。
Babe is a word used to address a young woman, or your wife, husband or lover, usually expressing affection but sometimes considered offensive if used by a man to a woman he does not know. Now many people use it to refer to an attractive young woman, for example: she is really a babe.
French word "belle" means beautiful woman, hence, campus belle is the most beautiful girl in the school.
Hunk is a slang term for a sexually appealing man, a person who is sexually attractive or a well-muscled, sexualized man.