walking on two legs

简明释义

两条腿走路

英英释义

例句

1.The robot was designed to mimic humans by walking on two legs.

这个机器人被设计成模仿人类，能够用两条腿走路。

2.Children learn the skill of walking on two legs at a very young age.

孩子们在很小的时候就学习用两条腿走路的技能。

3.The documentary showed various species walking on two legs in their natural habitat.

这部纪录片展示了各种物种在其自然栖息地中用两条腿走路的情景。

4.After months of therapy, the toddler is finally walking on two legs.

经过几个月的治疗，这个幼儿终于能够用两条腿走路。

5.Scientists study how animals evolved to start walking on two legs millions of years ago.

科学家研究动物是如何在数百万年前开始用两条腿走路的。

作文

The phrase walking on two legs refers to the bipedal locomotion that is characteristic of humans and some other species. This ability has significantly influenced our evolution, allowing us to adapt to various environments and develop complex societies. In this essay, I will explore the importance of walking on two legs in human history, its impact on our physical development, and how it differentiates us from other animals.From an evolutionary perspective, walking on two legs marks a crucial milestone in the development of hominins. Early ancestors of modern humans, such as Australopithecus, began to walk upright approximately four million years ago. This adaptation was likely driven by environmental changes, including the expansion of savanna habitats. By standing upright, these early humans could cover greater distances in search of food and resources. The shift to walking on two legs also freed the hands for tool use, which played a vital role in our survival and advancement.Furthermore, walking on two legs has significant implications for our physical structure. The human skeleton has evolved to support bipedalism, with a unique arrangement of bones and joints that allows for efficient movement. Our pelvis is shorter and broader than that of quadrupedal animals, providing stability while walking. Additionally, the curvature of our spine helps to balance the body’s weight over the legs. These adaptations not only facilitate walking on two legs but also contribute to our ability to run and engage in other physical activities.Moreover, walking on two legs has shaped our social structures and interactions. As we evolved, the ability to walk upright allowed humans to see further and communicate more effectively. This led to the development of complex social behaviors and the formation of communities. For instance, early humans could signal to one another while foraging or hunting, enhancing their chances of survival. The act of walking on two legs also signifies independence and the ability to explore new territories, which has been crucial for the spread of human populations across the globe.In contrast, many animals remain quadrupedal, relying on four limbs for mobility. While this method of locomotion is highly effective for certain species, it limits their ability to manipulate objects and create tools. The distinction between bipedal and quadrupedal movement highlights the unique evolutionary path that humans have taken. Walking on two legs has not only set us apart from other animals but has also enabled us to thrive in diverse environments, from dense forests to open plains.In conclusion, walking on two legs is a defining characteristic of humanity that has profoundly influenced our evolution, physical development, and social interactions. This remarkable ability has allowed us to adapt to various challenges, paving the way for technological advancements and cultural evolution. Understanding the significance of walking on two legs provides valuable insights into what makes us human and how we have come to dominate the planet. As we continue to evolve, it remains essential to appreciate the journey that has brought us to this point, recognizing the importance of our bipedal heritage in shaping our future.

短语walking on two legs指的是人类和其他一些物种特有的双足行走能力。这种能力对我们的进化产生了重大影响，使我们能够适应各种环境并发展复杂的社会。在这篇文章中，我将探讨walking on two legs在人类历史上的重要性，它对我们身体发展的影响，以及它如何使我们与其他动物区分开来。从进化的角度来看，walking on two legs标志着人类祖先发展的一个关键里程碑。现代人类的早期祖先，如南方古猿，大约在四百万年前开始直立行走。这种适应很可能是由环境变化驱动的，包括草原栖息地的扩展。通过直立行走，这些早期人类能够在寻找食物和资源时覆盖更大的距离。转向walking on two legs也解放了双手用于工具使用，这在我们的生存和进步中发挥了至关重要的作用。此外，walking on two legs对我们的身体结构有重要影响。人类骨骼已经进化以支持双足行走，骨骼和关节的独特排列使得运动更加高效。我们的骨盆比四足动物的骨盆更短更宽，提供了行走时的稳定性。此外，我们脊柱的曲度有助于将身体的重量平衡在双腿上。这些适应不仅促进了walking on two legs，还增强了我们奔跑和参与其他身体活动的能力。而且，walking on two legs塑造了我们的社会结构和互动。随着我们的进化，直立行走的能力使人类能够看得更远并更有效地沟通。这导致了复杂社会行为的发展和社区的形成。例如，早期人类在觅食或狩猎时能够相互发出信号，提高了他们的生存机会。walking on two legs的行为也象征着独立性和探索新领土的能力，这对人类群体在全球范围内的扩散至关重要。相比之下，许多动物仍然是四足行走，依赖四肢进行移动。虽然这种行走方式对某些物种非常有效，但它限制了它们操纵物体和制作工具的能力。双足与四足运动之间的区别突显了人类所走的独特进化道路。walking on two legs不仅使我们与其他动物区分开来，还使我们能够在多样的环境中茁壮成长，从密林到开阔平原。总之，walking on two legs是人类的一个决定性特征，对我们的进化、身体发展和社会互动产生了深远的影响。这一非凡的能力使我们能够适应各种挑战，为技术进步和文化演变铺平了道路。理解walking on two legs的重要性为我们提供了宝贵的见解，揭示了是什么使我们成为人类，以及我们是如何主宰这个星球的。随着我们继续进化，欣赏这一旅程对我们至关重要，它让我们认识到双足遗产在塑造我们未来中的重要性。