break one's back

美 [breɪk wʌnz bæk]英 [breɪk wʌnz bæk]
  • 网络折断脊骨;断为两截;拼命工作;拼命做
break one's backbreak one's back

verb

1
work very hard, like a slave
Synonym: slave buckle down knuckle down

数据来源:WordNet