The noise in the zoo turned out to be the croaks of bullfrogs.

动物园里喧噪得很，原来是一群牛蛙在叫。

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The words she croaks in her thatch-roofed, mud-brick farmhouse are precious.

在这间由茅草筑顶、土砖建成的农舍里，她沙哑的声音所说的每个字都弥足珍贵。

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These underwater noise reminded the submarine crews of frog croaks, so they called the sound "quackers" (from the Russian word for frog sounds).

这些水下的声音使船员们想到了蛙叫，所以他们给这个声音取名叫“quackers”(来自于俄语，表示青蛙的叫声)。

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These underwater noise reminded the submarine crews of frog croaks, so they called the sound "quackers" (from the Russian word for frog sounds).

这些水下的声音使船员们想到了蛙叫，所以他们给这个声音取名叫“quackers”(来自于俄语，表示青蛙的叫声)。

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