"とんでもない山奥"
直訳: unbelievably far into the mountains
In the middle of nowhere = 人里離れた
「とんでもない山奥でなければ、どこでも携帯電話が使える。」
- As long as its not the middle of nowhere, you can use your cellphone anywhere.
- You can use your cell phone anywhere as long as its not the middle of nowhere.