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- 现在人类所使用的所有纤维之中，有很大的百分比是人造的。
Of all the fibers now used by man, a very large percentage is man-made.
- 直到一八八四年，第一个人造纤维才制造出来。
It was not until 1884 that the first artificial fiber was made.
- 这件衣服是人造纤维的。
This dress is made of artificial fibers.
- 科学家建议人们多吃些纤维素。
Scientists are recommending that people eat more fiber.
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