back out of – withdraw
- You promised you would do it by Tuesday. You can’t back out of it now.
be cut out to/for – be suitable to/for
- I don’t think I was cut out to be a manager. I hate ordering people around.
be taken aback – be surprised and at a loss for words
- I was rather taken aback when he suddenly announced his resignation.
bear up under – cope with a difficult situation
- How are you bearing up under all this extra work?