这里的 while 是用于引导让步状语从句，表示“尽管”。尽管我总是感觉我考试能及格，但是我从未料到我会得到A。

又如：

While I am willing to help, I do not have much time available. 尽管我愿意帮忙，但是没有多少时间。

While I fully understand your point of view, I do also have some sympathy with Michael’s.  尽管我完全同意你的观点，但同时我也与迈克尔有些同感。

It’s business as usual at the factory, even while investigators sift through the bomb wreckage.  尽管调查员在仔细检查爆炸残骸，工厂还是照常开工。

While none of these pictures is of the first rank (=of the highest quality), some are of interest.  尽管这些都不是一流的照片，但有些还是很有趣的。

While this is very important material I think it’s probably pitched at too high a level for our students. 尽管这是个很重要的材料，但我认为它的难度太大，不适合我们的学生。