fall behind
phrasal verbwithfallverbuk/fɔːl/us/fɑːl/fell|fallen
tofailto do somethingfastenough or ontime:
落在后面；落后He wasillfor sixweeksandfellbehindwithhisschoolwork.他病了6个星期，落下了学校功课。
I'vefallenbehindonthemortgagepayments.我拖欠了按揭贷款。
Failing and doing badly
- abjectly
- at-risk
- backbencher
- balls(something)up
- be on your beam endsidiom
- blow
- bomb
- collapse
- fight a losing battleidiom
- flog
- flog a dead horseidiom
- flop
- flub
- founder
- rot
- running on emptyidiom
- sclerotic
- screw
- smoke
- the rot sets inidiom