hard-to-break

基本解释

There's a biological reason a lot of our bad habits are so hard to break - they get wired into our brains.
我们大量的坏习惯之所以难以打破，有生物学方面的原因——它们已经根植于我们的大脑之中。
When some metals are cooled nearly to absolute zero, the electrons in them form hard-to-break "Cooper pairs" that flow without resistance.
当一些材料冷却到接近绝对零度时，其中的电子形成很难断开的“库伯对”，从而无电阻流动。
Managers only manage people as well as they themselves are managed - too often not very well. This means a negative spiral of poor management develops - hard to break.
经理管理下属的方法就象他自己被上级管理的方法一样，这种惯性并不是好事情。这表示拙劣的管理会延续下去很难打破。

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