他试图修理那台旧电脑，但发现自己完全力不从心。

He tried to fix the old computer but realized he was ___hopelessly out of his depth.

他彻底迷上了那款新游戏。

He was ___hopelessly addicted to that new video game.

他试图修理自行车，但对机械一窍不通。

He tried to fix the bike but was ___hopelessly bad with tools.