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Scientists have long known that cartilage gets its strength from interlocking millimetre-long collagen fibres that work in a similar way to the load-bearing steel rods in reinforced concrete.
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很久以前科学家就了解软骨通过将毫米长的胶原纤维进行交联来获得强度，这种方式类似于加强型混凝土中负重的钢柱。 |
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Scientists have long known that dolphins identify themselves with names, but the belief was that, like some monkeys, the animal's voice was the key ingredient of the call.
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此前，科学家已经得知，海豚能对彼此的声音做出反应，但他们还想知道，海豚发出的这种声音中是否包含能让其身份变得更加清晰、更好辨认的某种因素，亦或它们的“名字”本身就足够用来识别了。 |
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Scientists have long sought such a stiff-leafed rice plant, believing that it would raise grain yields.
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科学家经过长期的努力，研究出这样一种有长而直的叶子的稻子，他们相信这种稻子会提高谷物的产量。 |
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Scientists have long sought to build lasers from silicon.
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多年来，科学家一直想用矽制造出雷射光。 |
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Scientists have long studied Martian surface features, like ravines, which suggest that liquid water flowed on ancient Mars.
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科学家们很久就开始研究火星表面特征，例如峡谷，它们表明曾经有液态水在古老的火星上流过。 |
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Scientists have long used sea urchins to study fertilization and early development in humans.
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科学家们一直用海胆来研究受精卵和人类早期形态。 |
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Scientists have made a breakthrough in their treatment of that disease.
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在治疗那种疾病方面科学家已有了突破。 |
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Scientists have more to do than to allow their imagination to roam at large.
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科学家在任其想像力自由遨游之外还有更多的事情要做。 |
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Scientists have more to do than to allow their imaginations to roam at large.
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科学家在任其想象力自由遨游之外还有更多的事情要做。 |
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Scientists have now discovered how this protective shield is broken down, allowing cancer to spread throughout the body.
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研究人员现在明确了这一屏障是如何崩溃并使癌症扩散。 |
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Scientists have observed a dolphin trying to get a reluctant moray eel to come out of its crevice by poking it with the spiny body of a dead scorpionfish.
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科学家观察到一只海豚使用多刺的，已死的蚰鱼来戳石缝中的海鳗，好把它赶出来吃掉。 |
