rat on
phrasal verbrat on somebody
(North American English also rat somebody out (to somebody))
- (informal, disapproving) to tell somebody in authority about something wrong that somebody else has done
泄露秘密；告密 - Where I come from, you don't rat on your friends.
在我的老家，谁都不出卖朋友。
- Where I come from, you don't rat on your friends.
rat on something
- (British English, informal) to not do something that you have agreed or promised to do
背弃做某事的诺言 - The government is accused of ratting on its promises to the unemployed.
政府被指责对失业者背信弃义。
- The government is accused of ratting on its promises to the unemployed.