I. phrasal
or lean over backward
: to make extreme efforts (as at concession)
II. phrasal
or bend over backwards
: to make extreme efforts
I. phrasal
or lean over backward
: to make extreme efforts (as at concession)
II. phrasal
or bend over backwards
: to make extreme efforts
Merriam-Webster's Collegiate English vocabulary. Энциклопедический словарь английского языка Merriam Webster. 2003