单词：hydrophone calibration apparatus
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Idiom: Lose your marbles ( go crazy ) Hit the book: The experiments by some scientists tell us that bats use the sunset to calibrate the Earth's magnetic field for use as a compass. But the story may be still more complicated. In birds, it's not the
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Indian Mobile Phone App Aims to Thwart Sexual Assaults Cheena Sikka is typical of the modern, professional Indian woman. She works hard. She works late. When her shift is finished, a company cab takes her part of the way home. But she worries about t
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