1. to go wrong
2. to take a wrong turning

1. to look for blemishes
2. to find fault
3. nitpicking

1. setback
2. reverse
3. check
4. defeat
5. frustration
6. disappointment
7. to frustrate
8. to discourage
9. to set sb back
10. to blunt
11. to subdue

1. thwarted
2. obstructed
3. setback

1. trouble
2. damage
3. setback
4. sth goes wrong

1. to do less well than before
2. to make a concession
3. setback
4. backward step
5. leeway
6. room to maneuver
7. fallback

classifiers: 樁, 起, 次

1. unexpected
2. accident
3. mishap

classifier: 個

1. an unforeseen event
2. accident
3. misfortune

1. mishap
2. accident
3. accidental loss

1. hiccup
2. belch