So when they form, the histones are stripped off and replaced with another molecule called protamine, which shapes the DNA into an even tighter bundle, where the genes cannot be read.

所以当他们成形的时候，组蛋白被脱离并且被一种叫做鱼精蛋白的分子代替。它可以把DNA组装成更加紧密的一束，这些基因是无法被阅读的。

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Living off campus and commuting to school is an option that can help you save a bundle of money.

住在校外和通勤上学是一个能为你省下一笔钱的选择。

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Eg: Get the bundle off my back.

把这个包裹从我背上拿下去。

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