Indeed, few could have foreseen that Tribune’s ad revenue would drop by at least 15% in each quarter of this year so far.

的确如此，没有人能事先预知迄今为止论坛公司的广告收入于今年每个季度会下降至少15％。

www.ecocn.org

Goldman Sachs chief U.S. economist Jan Hatzius, who is in the $500 billion camp, estimates that private spending will drop by at least 6% of GDP over the next year or two.

高盛首席经济学家Jan Hatzius是支持5000亿开支阵营中的一员，他预计个人花费将在未来的一两年中将下降GDP的6%。

article.yeeyan.org

Major George Filer, who runs the National UFO Centre, said UFOs are "often spotted" during big national events, and might drop by at the royal wedding, according to The Sun.

菲勒中校目前掌管美国国家飞碟中心，他说，每逢重要的国家庆典或重要大事时，外星人都会出现，他们有可能来参加皇室婚礼。

www.hjenglish.com

So, it's a trivial matter, by looking at what is the weight and how far does it drop, to say OK, how much work is done by the paddle wheel.

好，让我们看看重物的质量,以及它下落的距离，就知道桨轮做了多少功。

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