In the last class, we started talking about useful plantfibers.
上节课，我们开始讨论有用的植物纤维。
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How do you take plantfibers that individually you could break with your hands and turn them into a rope that's strong enough to moor a ship that weighs thousands of tons?
你如何将植物纤维一个个地用手折断，然后把它们变成一根足够结实到可以系住一艘重达数千吨的船的绳子呢？
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If you wanna tie anchor to it and drop it right into the ocean, that's no problem, because plantfibers can stand up for months, even years, in direct contact with salt water.