They tend to be dangerously brittle — meaning that changes to one area of the system will affect other seemingly unrelated areas — and therefore difficult and time consuming to refactor.
这些系统往往脆弱不堪，也就是说对系统中某个区域的修改将会影响到其它看上去毫不相干的区域，因此要对它们进行重构也相当的困难和耗时。
As we traverse the tree, changes are local to the current focal node, meaning all constant-time operations except for up.
遍历树时，更改是在当前关注节点的本地做出的，也就是说除了向上移动之外，所有操作都是常量时间的。
Between years, average changes in time spent on activities tend to be very small, meaning changes of a few minutes are considered significant.
用于各种活动的平均时间在不同年份之间的差别往往非常小，所以几分钟的变化都被认为是比较大的。
Brian will face a 300 million U. S. dollars of business, but at this time Brian had a recurrence of major changes in his life, money, meaning you have for him?
布莱恩将面对一桩三亿美元的生意，但是此时的布莱恩生活已经再度发生大变故，钱财对于他来说还有意义吗？
Brian will face a 300 million U. S. dollars of business, but at this time Brian had a recurrence of major changes in his life, money, meaning you have for him?
布莱恩将面对一桩三亿美元的生意，但是此时的布莱恩生活已经再度发生大变故，钱财对于他来说还有意义吗？
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