characterized by effort to the point of exhaustion; especially physical effort;
"worked their arduous way up the mining valley"
"a grueling campaign"
"hard labor"
"heavy work"
"heavy going"
"spent many laborious hours on the project"
"set a punishing pace"
backbreaking的用法和样例:
例句
用作形容词 (adj.)
Digging the garden is a backbreaking job. 翻整花园的地是件累人的活。