a world of difference

uncountable

A great or insurmountable difference.

Japanese Meaning

途方もない違い / 大きな違い / 根本的な差異

Switching from frozen meals to home-cooked food made a world of difference in his energy and mood.

冷凍食品から手作りの食事に切り替えたことで、彼のエネルギーと気分には雲泥の差が生じた。

Sense（1）

A great or insurmountable difference.