Let her buy a variety of products so she can take them on a test run and see what she likes best.

让她买各种各样的卫生用品，这样她能逐个试验，看她最喜欢用哪一个。

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As an example, on a test run, the extra elapsed time for an XML file with 10,000 elements was less than half a second on a 600 MHz processor.

比如根据测试，在600 MHz的处理器上，包含10,000个元素的XML文件只多花了不到半秒钟的时间。

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On a test run the prior month, they found that they could send up to 7,000 texts on some days, which prompted their record-breaking attempt the following month.

在测试进行的前一个月，他们发现在某些日子里，他们每天可以发送高达7000条短信。这推动了他们在紧接下来的一个月里打破记录的企图。

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On a test run in an alley across from the office, the vehicle lurches forward to a slow trot as engineers nervously walk alongside it in case the gyroscopes fail and the cycle tips.

FORBES: Lit Motors And Its Convention-Defying Motorcycle

After years of planning, New York City transportation officials offered the bikes for a media test run on a warm, sunny Sunday in Brooklyn.

WSJ: NYC holds bike-share program demonstration

In August to September last year, China sent its one and only icebreaker Xue Long (Snow Dragon) on a successful two-way test run of the NSR.

CNN: China eyes Arctic options in energy, transport