I have never seen such a seismic shift in public opinion in such a short period of time.

我从来没有见过公众舆论在这么短的时间内发生如此突然的转变。

Behind the texting explosion is a fundamental shift in how we view our mobile devices.

短信爆炸的背后是我们如何看待移动设备的根本转变。

Sometimes a sudden shift in color can be used to startle potential predators or threaten intruders.

有时候，色彩的快速变换可以用来惊吓掠食者或威胁入侵者。

The reasons for this really enormous shift in plans, and the enormous shift in subject matter, are worth exploring.

这计划的巨大转变以及主题的巨大转变，其原因值得探讨。

Overall, there was a large generational shift in which the second generation of parents was much less likely to spank than their own parents.

总体上看，有一个很大的一代人的转变，与自己的父母相比，第二代父母更不可能打屁股。