It was the legendary strength and brightness of silk fibers that made it so sought-after.

这就是蚕丝纤维的传奇力量和色彩，从此变得炙手可热。

The idea that nanofibers make up spider silk has been proposed before, but until now there was no evidence to suggest that nanostrands comprise the entire makeup of a silk fiber.

纳米纤维构成蜘蛛丝的想法之前已经提出，但直到现在还没有证据表明纳米线构成了丝纤维的全部组成部分。