All major groups of vertebrates have rods in the retina as well as cones.

所有主要脊椎动物类群的视网膜中，都同时含有杆细胞与锥细胞。

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All major groups of vertebrates have rods in the retina as well as cones.

所有主要脊椎动物类群的视网膜中，都同时含有杆细胞与锥细胞。

youdao