Is anyone adept at scanning the whole code base, looking for pervasive issues or opportunities? Are less expensive tweaks and hacks preferable over doing it right (but expensively) the first time?
有没有人善于浏览整个代码库，发现普遍的问题和机会？更喜欢代价低的调整和删改还是第一次就把事情做好(但是代价高)？
Not only do these practices help assure that components and applications are written right the first time, but that they stay working through months and years of further tweaks and improvements.
这种风气不但有助于确保组件和应用程序最初的质量，还促使程序员不断调整和改进代码。
From its first commercial development in the late 1870s, on through some slight tweaks to size and shape, the bulb has been a glass-and-filament mainstay for more than 130 years.
从它第一次作为商品在19世纪70年代出售以来，这130多年灯泡一直都是由玻璃和灯丝构成，只在尺寸和形状方面经历了一些微小的变化。
From its first commercial development in the late 1870s, on through some slight tweaks to size and shape, the bulb has been a glass-and-filament mainstay for more than 130 years.
从它第一次作为商品在19世纪70年代出售以来，这130多年灯泡一直都是由玻璃和灯丝构成，只在尺寸和形状方面经历了一些微小的变化。
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