自首并告密

【法】 cop out

自首的英语翻译：

confess one's crime; surrender; deliver oneself to the police; give oneself up
【法】 criminate oneself; deliver oneself up; give oneself up; self-accusation
surrender

并的英语翻译：

combine; equally

告密的英语翻译：

inform against; blow the gab; nose on; peach against; squeak; squeal; weasel
【法】 beef; inform; peach; sing out; split; squeal; tell tales