underachiever
noun[C]
uk/ˌʌn.də.rəˈtʃiː.vər/us/ˌʌn.dɚ.əˈtʃiː.vɚ/someone who is lesssuccessfulthan they should be atschoolor atwork
工作上的后进者;学习落后的学生Failures
- another/the final nail in the coffinidiom
 - bloodbath
 - brain freeze
 - breakdown
 - busted flush
 - car crash
 - flop
 - foul(something)up
 - freefall
 - game overidiom
 - hash
 - lemon
 - lost cause
 - mess
 - nail
 - reversal
 - slim pickings
 - slush pile
 - track record
 - train wreck