在这样的情况下，参加现场表演是一次终身难忘的经历。

In this case, attending a live performance is surely an exciting and unforgettable experience.

youdao

我保证，这将是一个非常有回报性的经历，这也将是你可能终身难忘的经历。

I promise, it will be an extremely rewarding experience. One you'll likely remember forever.

youdao

申奥陈述将是王燕终身难忘的经历，她将把自己的所见所感告诉身边的人。

This will be a memorable moment in Wang Yan's life. She will tell people surrounding her what she experienced and what she felt.

youdao