如果你在一只气球里充满空气，把它扎紧，然后放到火炉旁边给它加热，气囊里面的空气会剧烈地膨胀，以致最后爆裂，发出巨大的响声。
If you put a bladder that is filled with air and tied up, into the pipe of a heated stove, the air inside will expand so much as to burst the bladder with a loud report.
因为我们了解到，从以往的泡沫可以膨胀在相当长的时间，然后爆裂。
As we have learned from previous bubbles they can inflate for a long time before they burst.
因为我们了解到，从以往的泡沫可以膨胀在相当长的时间，然后爆裂。
As we have learned from previous bubbles they can inflate for a long time before they burst.
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