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。

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.

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在这项研究中，她和同事们根据抓到的虱卵数量估算虱子滋生的程度。他们认为，虱卵越多，说明产卵的虱子越多。

In this study, she and her colleagues estimated the degree of louse infestation by the number of nits picked. The more nits, they calculated, the more lice-producing nits.

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这些卵变成幼瓢虫之后就是园丁们最好的朋友之一了，它们是凶猛的食肉动物，尤其针对粉虱与红蜘蛛。

These eggs turn into ladybird larvae, which are among the biggest friends we gardeners have. They're ferocious predators on problem whitefly and red spider mite.

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