Any of various hoofed mammals of the order Artiodactyla, which includes cattle, deer, camels, hippopotamuses, sheep, and goats, that have an even number of toes, usually two or sometimes four, on each foot.

• 偶蹄动物一种偶蹄目有蹄的哺乳动物，包括牛，鹿，骆驼，河马，绵羊和山羊，这些动物有偶数脚趾，通常每只脚有两个或有时四个