For all these reasons I believed - and I believe even more strongly today - in the unique and irreplaceable mis-sion of universities.

考虑到这些理由，我过去信仰，而今天甚至更加强烈地信仰大学独特的、无可取代的使命。

youdao

Eventually I replaced the sax with a 1935 Selmer cigar cutter model, but the sword proved irreplaceable.

最终，我只好换了一个1935年的塞尔曼牌雪茄切刀外形的萨克斯管，可那把佩剑却是没有什么可以替代的。

youdao

I consider them all irreplaceable-at least in my lifetime-so after deciding to build a treehouse, I thought long and hard about where to put it.

至少在我有生之年，我都认为它们在我内心深处是无可替代的。

youdao

But both are solid--better yet, irreplaceable--and I'll stick with them.

FORBES: Digital Rules