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The fossils revealed distinctive, zig-zag-shaped muscles, known as myomeres, which are still present in fish today.

这些化石揭示了独特的齿形肌肉, 称为肌球,至今仍鱼类中。

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ocasion, OCB, OCC, Occam, occas., occasion, occasional, occasionalism, occasionalist, occasionality,

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