ほねのおれる
Meanings
Pre-noun adjective
Expression
1. laborious; arduous; strenuous; painstaking; trying; taxing
Composed of
bone; frame; outline; core; backbone; spirit
to break; to be broken; to be folded; to give in; to back down; to turn (a corner)
Examples (2 in total)
It was really bone breaking work.
That was quite an effort for a child.