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The three neuropile regions of the optic lobe are brown and take on obvious stratification.
视叶的三个视觉纤维网都被染成褐色，并且呈现分层现象。
youdao
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The three neuropile regions of the optic lobe are brown and take on obvious stratification.
视叶的三个视觉纤维网都被染成褐色，并且呈现分层现象。
youdao