音标：[skju:'telәm] ；

n. 小盾板, 角质鳞片
[医] 小盾片(昆虫)

n. A rounded apothecium having an elevated rim formed of
the proper thallus, the fructification of certain lichens.
n. The third of the four pieces forming the upper part of a
thoracic segment of an insect. It follows the scutum, and is followed
by the small postscutellum; a scutella. See Thorax.
n. One of the transverse scales on the tarsi and toes of
birds; a scutella.

SSS 2008-08-29

This is Scientific American's 60-Second Science. I'm Adam Hinterthuer. This will just take a minute. Youve probably chased a fly or two around the house this summer. And, chances are, it took a few swings before you brought down the buzzing nuisance.

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Sorry,there is not text temporarily, Please help tingroom to look for it! 如果您能找到更好的听力原文，请发贴到听力原文收集区，您将会获得10到30积分的奖励! Thank you！

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教育与新闻

SSS 2009-08-12

Youve given some thought to oxygen, carbon, uranium. But youve probably never mused about the element ytterbium, symbol Yb. A new study by scientists at the National Institute of Standards and Technology, or NIST, says that ytterbium could find a rol

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Ac op

account receivable turnover rate

Addison's pill

agaric mineral (rock milk)

alchemistic symbol

Alessandria del Carretto