Animals cannot speak like humans primarily due to differences in their vocal¹ anatomy² and cognitive³ abilities. Human speech involves complex coordination⁴ between the brain, vocal cords, tongue, and lips, which allows us to produce a wide range of sounds and form words. Animals, on the other hand, have simpler vocal structures and lack the cognitive capacity to develop and use language in the same way humans do. While many animals can communicate through sounds, gestures, or other means, their communication systems are not as complex or versatile⁵ as human language.

动物不能像人类一样说话，主要是因为它们的发声结构和认知能力与人类不同。人类的语言需要大脑、声带、舌头和嘴唇之间的复杂协调，这使得我们能够发出各种声音并形成词汇。而动物的发声结构相对简单，且缺乏像人类那样发展和使用语言的认知能力。虽然许多动物可以通过声音、手势或其他方式进行交流，但它们的交流系统远不如人类语言复杂和多样化。