The tests were then re-washed as before, and placed on the ubiquitous opaque tile, and this time I was allowed to use the even more precious, and even rarer, monospecific anti-C3d reagent.

然后像以前一样开始洗涤，放置于不透明的白色瓷砖上，这次我被允许使用更加珍贵、更少见的特异性抗- C3d抗体试剂。