When he was forced to turn sharply to avoid a floating tree branch, the elephant dropped the hat and it fell to the river bottom.

当大象被迫急转弯以避开一根漂浮的树枝时，帽子掉了下来，掉到了河底。

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Without dense forests, our ancestors were forced to walk instead of swing on a branch to find the next tree.

没有茂密的森林，我们的祖先被迫行走，而不是从一个树枝荡到下一个树枝。

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Without dense forests, our ancestors were forced to walk instead of swing on a branch to find the next tree.

没有茂密的森林，我们的祖先被迫行走，而不是从一个树枝荡到下一个树枝。

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