major overhaul

基本解释

MobileMe, rightly derided for being buggy and expensive, is expected to get a major overhaul to tie in with the iPhone 5’s launch.
被嘲笑为过时以及昂贵的MobileMe，被期望大大修改一下以便用于准备上市的iphone 5。
A major overhaul of our chemical policies is in order—specifically passage of the recently reintroduced Safe Chemicals Act by Senator Frank Lautenberg.
我们的化学物品政策正在进行改革——值得一提的是，刚刚通过了由议员Frank Lautenberg重新提出的化学品安全法。
The impetus for Windows 8′s major overhaul is the rise of tablets, and Apple’s iPad in particular.
随着平板电脑的崛起，特别是在苹果iPad的推动下，微软公司推出了这款Windows 8平板电脑。

Bernanke's testimony comes as lawmakers attempt a major overhaul of financial regulations.
"I don't see a need to overhaul the regulations. The regulations cover the major causes of pipeline failures,and we do not see any gaps."
Treasury Secretary Geithner says a jobs bill is vital, as is an overhaul of America's financial regulations to limit risk-taking by the nation's banks and major private financial institutions.

No, this is a major overhaul of the logo, the layout, the fonts, the navigation.
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