in an ideal world 在理想的世界

in an ideal / perfect world (= used to say how you would like things to be)

在理想的 / 完美的世界

You can use in an ideal world or in a perfect worldwhen you are talking about things that you would like to happen, although you realize that they are not likely to happen.

在理想状态下

---

【例句拓展】

In an ideal world Karen Stevens says she would love to stay at home with her two-and-half-year-old son.

卡林·斯蒂芬斯说，她愿意和两岁半的儿子待在家里，但那只是理想状态。

In an ideal world, we would be able to recycle everything.

在理想世界里，任何东西都可以循环使用。