fibers 基本例句 纤维 Its cultivation may be ancient— dating as far back as 5,000 years ago— but cotton, and its characteristically soft, downy fibers, could be just what modern medicine has been waiting for. 棉花的种植历史也许非常悠久——可以追溯到迄今5,000年前——但它和它富有特性、柔软光滑的纤维可能正是现代医学所要寻找的东西。 yeeyan