Responding to changes in the CF echo's frequency, bats of some species correct in flight for the direction and velocity of their moving prey.

有些种类的蝙蝠会根据回声频率的变化来调整向猎物移动的方向和速度。

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The way forward is not always clear and through, but we finally find the correct direction. Maybe some review of the trace behind could tell the reason.

未来的道路，并非一览无遗，但我们终于看清了前进的方向，也许偶尔审视来时的轨迹，可以找到一点端倪。

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We may encounter many people in our lives. Some are like a shooting star, but give off so much light that they guide you in the correct direction;

在我们的生活中，也许会遇到很多人，有些人就像流星一样，却发出足够的光芒指引你走向正确的方向；

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