This momentum helps programs accomplish major amounts of work (a good thing), but it can also make programs resistant to changes in direction.
这个动力帮助规划完成主要的工作(一件好事),但是它也可能是规划抵抗方向上的变化。
Often this is a good thing because it allows you to isolate parts of the problem, but it also has downstream consequences when you make changes to the parent class.
这通常是一件好事,因为它充许您将问题分成几部分,但是当您对父类进行变更时,它会产生不好的影响。
And it's a good thing, too -kids need this kind of protection and assistance because they aren't mature enough to take care of themselves and make careful decisions on their own.
这是一件好事,因为小孩子需要这种保护和协助,他们不够成熟来照料他们自己,及独自地做出周全的决定。
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