据估计，破裂的冰重达300万吨。
It is estimated that the ice that broke off weighed three million tons.
如果双塔的木制框架起火，可能会导致最大的钟——重达13吨的伊曼纽尔钟倒塌，从而可能会导致双塔倒塌。
If the wooden frame of the towers had caught fire, it could have sent the bells the largest of which, the Emmanuel Bell, weighs 13 tons crashing down, potentially causing the collapse of both towers.
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？
How do you take plant fibers 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?
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