с нуля(Our courts system is complicated and – in places – confusing, because it has developed over 1,000 years rather than being designed from scratch.4uzhoj)
переделать заново(When I sent out the request to Atlanta I noted that the RT549-01 series was very similar to something we'd already built, and so the whole thing didn't need to be redone from scratch as parts of it were actually identical. -- поэтому всё не нужно было переделывать зановоART Vancouver)
