translation.en: But all the while that we've been working on this engagement for Cleveland, we've also been working in the background on really our largest engagement to date, and that's the 9/11 Memorial and Museum.
translation.zh: 但尽管我们一直竭力完成 克利夫兰艺术博物馆的委托 同时，我们也一直致力于迄今最大的委托 同时，我们也一直致力于迄今最大的委托 也就是9·11事件纪念博物馆