They have just undergone the most profound experience that has totally transcended anything else they have experienced.

其实他们刚刚经历了最为深刻的生命体验，这种体验超越了他们所有的人生经验。

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I have experienced troubles and undergone frustrations.

我经历风风雨雨，越过艰难坎坷。

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Furthermore, patients may not wish to receive additional chemotherapy or radiation therapy if they have already undergone treatment with these modalities and have experienced a cancer recurrence.

此外，患者在已经进行过标准治疗却发生癌症复发的时候，他们也不希望接受额外的化疗和放疗。

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