go to the expense of sth / of doing sth | go to a lot of, etc. expense
to spend money on sth :
They went to all the expense of redecorating the house and then they moved.
go to the expense of sth / of doing sth | go to a lot of, etc. expense
to spend money on sth :
They went to all the expense of redecorating the house and then they moved.
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005