有双重性
any of numerous large bipedal ornithischian dinosaurs having a horny duck-like bill and webbed feet; may have been partly aquatic.
众多
大型两
目恐龙，长有鸭嘴状角形嘴和蹼；可能曾有部分水栖习性。
动物(
)any of numerous large bipedal ornithischian dinosaurs having a horny duck-like bill and webbed feet; may have been partly aquatic.
众多大型两目恐龙，长有鸭嘴状角形嘴和蹼；可能曾有部分水栖习性。
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