学员疑问： 老师，这句话结构太复杂，翻译不通顺：The fact that he succeeded in the experiment, which was considered almost impossible by his peers, proves that perseverance can overcome seemingly insurmountable challenges.

老师解答： 句子主干为“The fact proves that...”。“that he succeeded...”是同位语从句，解释“fact”内容；“which was considered...”为非限定性定语从句，修饰整个实验。翻译时需拆分嵌套结构，按中文逻辑重组。

参考译文：他在实验中取得了成功，而这一实验曾被同行认为几乎不可能完成，这一事实证明，毅力能够战胜看似不可逾越的挑战。

点评分析： 处理嵌套从句时，需先提取主干信息，再将修饰成分转化为独立短句。例如，将同位语从句“that he succeeded”译为“他取得成功”，非限定性从句“which was considered...”用“而这一实验...”衔接，使译文层次清晰。此外，“seemingly insurmountable”译为“看似不可逾越”，既保留原意，又符合中文表达。