back-breaking work非常难做的工作
a back-breaking job累断腰的工作
do back-breaking work做艰苦繁重的工作
back-to-back capacitor bank breaking current背对背电容器组开断电流
同义词:arduousbackbreakinggruelinggruellinghardheavylaboriousoperosepunishingtoilsome
ADJ(形容词) Back-breaking work involves a lot of hard physical effort. 非常辛劳的 [usu ADJ n]