Dholakia's study found that 22% of respondents allowed their Groupon coupons to expire without being used, though he warns that vendors' data was somewhat spotty on that metric.

Dholakia的研究发现，有22%的被调查对象并没有使用Groupon优惠券，而是让它们过期作废，然而他提醒人们在这项指标上业主提供的数据有点水份。

youdao

Worldwide, data centers left a massive carbon footprint in 2009: 121 billion metric tons, according to a Rice University study, or about 1.6 percent of worldwide carbon emissions.

根据 Rice University 的研究报告，全世界的数据中心在 2009 年产生了巨大的碳足迹：12.1 亿吨，这大约占全世界碳排放总量的 1.6%。

youdao

First, the way combined with method and experiment were used to study the metric pump.

首先，采用理论与实验相结合的方法对计量泵进行了进一步的研究。

youdao

Another study metric, called Visual Attention Pattern, also found the iPhone and iPad drawing more attention than rival Android devices.

FORBES: Eye-Tracking Study Finds iPhone, iPad Draw More Attention Than Android Devices

When they realized a deep dive into numbers would help differentiate their investing strategy, the managers ordered their staff to conduct a six-month study on every valuation metric they could think of.

FORBES: The Numbers Nerds Beating The Market With 80 Years Of Data

As an interesting aside, a historical study of price-to-sales actually signals the opposite, as the current metric stands at 1.8x at the low end of the historical range of 1.8x to 3.3x.

FORBES: This Hog Is Getting Quite Fat