Researchers said yesterday that they had developed a blow-dryer-like device that appears to get rid of lice and their eggs in a single half-hour session.

科学家们昨天宣布他们发明了一种类似吹风机的装置能够在半小时内清除虱子和虱卵。

youdao

A single hotel room, if you can find one, will set you back $500-600 a night. A bed in a simple guesthouse costs at least half that.

比如，在一个所旅馆单间住一晚就得花掉500-600美元，就算在一家简陋的旅店租张床，你最多也只能省下一半。

youdao

In the few days that it was blowing up, we had more than half a million hits to our robots.txt file, including 175, 000 in a single 24-hour period, which is quite a record.

在robots . txt文件被引爆的数天里，产生了对它超过50万次的点击率，其中包括24小时内产生了175 000次的点击率，这是一个相当不错的纪录。

youdao

That cabin is a 14-ton spherical steel capsule only two meters in diameter, with a single,half-meter-wide circular plastic window for viewing.

VOA: standard.2010.06.21

After the second touchdown scored against Bailey in a single half, the coaches should have provided Bailey with help.

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Exhibit A here is the top five of its batting order, none of whom managed a single century in the Tests or a single half-century in the ODIs.

WSJ: Bangladesh Cricket Team Bruised After Tour of Zimbabwe

"For the first time ever, in a single day we had half a billion people use Facebook, " he said.

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