这次旅行是一次很棒的经历。

This trip was a great ___experience.

搬到一个新的国家是一次我永远不会忘记的经历。

Moving to a new country was an ___experience I'll never forget.

第一次见到我的笔友是一段美妙的经历。

Meeting my pen pal for the first time was a wonderful ___experience.