From a thousand feet, flapping his wings as hard as he could, he pushed over into a blazing steep dive toward the waves, and learned why seagulls don't make blazing steep power-dives.
从一千英尺高空，他使劲地拍着翅膀，朝着海浪垂直疾降，于是他懂得了海鸥不作垂直疾降的道理。
It fires narrow beams of sound waves that can be heard clearly from 300 meters (about a thousand feet) away.
系统发射出的声波窄射线在300米(约1000英尺)开外也能清晰听到。
Lets count the waves... one, one thousand, two one thousand.
让我们数数那些挥动的手……一，一千，两，一千！
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