精确的是这种声纳观察世界的方法，蝙蝠可以通过大小、形状和纹理来辨别像蚊子这样的小东西。

Precise is this sonar view of the world that bats can distinguish by size, shape, and texture something as small as a mosquito.

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一项新研究发现：狗能够通过狗叫声来辨别出另一只狗的大小。

Dogs are able to tell how big another dog is just by listening to its growl, a new study has found.

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狗能够通过狗叫声来辨别出另一只狗的大小。

Dogs can tell how big another dog is just by listening to its growl.

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