These were a more casual summer shoe with a cotton fabric upper and a flexible sole made of jute rope.

这是一款更休闲的夏季鞋，采用棉质面料鞋面和黄麻绳制成的柔韧鞋底。

Then a student in her lab had a eureka moment: Why not dip cotton fabric in a solution of the nanocrystals to keep bacteria from sticking to the fabric?

然后，她实验室里的一名学生灵光一闪: 为什么不把棉织物浸入纳米晶体溶液中，以防止细菌粘在织物上？