In a clear sky from a dark location at the right time, a faint band of light is visible across the sky.

在天气晴朗时从一个较暗的地点，在适当的时间，可以看见跨过天空的微弱光带。

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Unlike other bats and trilling birds, the clear-winged woolly bat and its relatives did not switch to a more narrow-band call as they got to this super-fast calling level.

不像其他蝙蝠和啭鸣的鸟类，洁翼彩蝠和它们的近亲因为达到了超高速水平并不需要切换到一个更窄的波段来啼叫。

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Brown says teens are only going for one type of watch: "a big, bulky waterproof watch in all colors - clear, pink, blue, yellow, orange, black," complete with a thick band and a large face plate.

Brown说年轻人只会买一种手表：“一种又大又厚重的防水手表，什么颜色都有- - -透明色，粉色，蓝色，黄色，橙色，黑色，”配上结实的表带和超大的表盘。

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However,the band is clear about staying pure in the music business.

VOA: special.2010.04.16

"We would like everyone to know that our set was not cut short by Clear Channel and to apologize to those we offended at the iHeartRadio Festival in Las Vegas, " the band said. iHeartRadio is a division of Clear Channel Broadcasting.

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They emitted so much radio-frequency interference that Mr. Clark struggled to get a clear signal for the band's wireless instruments and in-ear monitors.

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By making the rules clear in advance, the price band also promises to shine a spotlight on the cartel's opaque mechanism.

ECONOMIST: Oil