گزارش خطا در معنی کلمه 'slip up on'

1 general:: Phrase(s): slip up on something to make an error in something. • I guess I slipped up on that last job. • Fred slipped up on compiling that list—there are a lot of names missing.

2 general:: Phrase(s): slip up on someone, something, or an animal to sneak up on someone, something, or an animal quietly. (See also slip up.) • I slipped up on Harry and scared him to death. • The cat slipped up on a mouse and grabbed it.