break one's back

英 [breɪk wʌnz bæk] 美 [breɪk wʌnz bæk]

网络  折断脊骨; 断为两截; 拼命工作; 拼命做



英英释义

verb

  1. work very hard, like a slave

      Synonym:    slavebuckle downknuckle down