jawbone

简明释义

英[ˈdʒɔːbəʊn]美[ˈdʒɔːboʊn]

n. 颚骨；信用；下颚骨

vt. 赊买

vi. 赊买

复 数 j a w b o n e s

第 三 人 称 单 数 j a w b o n e s

现 在 分 词 j a w b o n i n g

过 去 式 j a w b o n e d

过 去 分 词 j a w b o n e d

英英释义

单词用法

同义词

反义词

例句

1.Since they ruled it until Samson took them out with the jawbone of an ass.

他们统治那里直到被参孙用驴腮骨将他们逐出领地。

2.When speaking, the sounds will generate vibrations in the people mouth and jawbone, then these vibrations will reach the skull.

当人说话的时候，声音会在人的嘴巴和颚骨处产生振动，并传达到头骨处，因此，骨传导麦克风能被佩戴到头部的任何地方。

3.And Samson said, with the jawbone of an ass, heaps upon heaps, with the jaw of an ass have I slain a thousand men.

参孙说，我用驴腮骨杀人成堆，用驴腮骨杀了一千人。

4.Impacted wisdom teeth may also be categorized on whether they are still completely encased in the jawbone.

阻生智齿也可以根据他们是否完全被腭骨包裹分类。

5.He opened the box. Inside was the jawbone of a long-dead man.

他打开盒子，里面是一个早已死去的男人的颌骨。

6.The sequencing of the oldest mammalian genome from an ancient polar bear jawbone provides clues about these.

从一个古代北极熊颚骨上测得的最古老哺乳动物基因组，为动物与气候的紧密相关提供了线索。

7.He broke his jawbone during the football match.

他在足球比赛中折断了他的下颌骨。

8.The dentist examined her jawbone for any signs of decay.

牙医检查了她的下颌骨是否有腐烂的迹象。

9.She felt pain in her jawbone after eating something hard.

她吃了硬东西后，感到下颌骨疼痛。

10.The doctor explained that the jawbone is crucial for chewing.

医生解释说，下颌骨对于咀嚼至关重要。

11.He had surgery to repair a fractured jawbone.

他进行了手术来修复骨折的下颌骨。

作文

The human body is a marvel of engineering, and one of its most fascinating components is the jaw. The jawbone, or 下颌骨, plays a crucial role in our daily lives, enabling us to perform essential functions such as eating, speaking, and expressing emotions. Understanding the anatomy and function of the jawbone can provide insight into how we interact with the world around us. The jawbone consists of two main parts: the upper jaw, known as the maxilla, and the lower jaw, referred to as the mandible. The maxilla holds the upper teeth and forms part of the eye sockets, while the mandible is the only movable bone in the skull, allowing for the opening and closing of the mouth. This movement is vital for chewing food, which is the first step in the digestive process. When we chew, the jawbone works in conjunction with the muscles of mastication, which include the masseter and temporalis muscles. These muscles contract to move the jawbone up and down and side to side, facilitating the breakdown of food into smaller, digestible pieces. Moreover, the jawbone also plays a significant role in communication. Our ability to speak is largely dependent on the movement of the jawbone. The position and movement of the jawbone help shape the sounds we produce, allowing us to articulate words clearly. Additionally, facial expressions often involve the movement of the jawbone, conveying emotions such as happiness, sadness, or surprise. For instance, when we smile, the jawbone moves in a way that enhances our facial expression, making it easier for others to understand our feelings. In addition to its functional roles, the jawbone can also be a source of health issues. Conditions such as temporomandibular joint (TMJ) disorders can affect the jawbone and surrounding muscles, leading to pain and discomfort. TMJ disorders can arise from various factors, including stress, teeth grinding, or misalignment of the jawbone. It is essential to address these issues promptly, as they can significantly impact one's quality of life. Furthermore, the jawbone is also an important area of study in anthropology and archaeology. Researchers often analyze ancient jawbones to gain insights into the diets and health of past populations. By examining the wear patterns on teeth and the overall condition of the jawbone, scientists can infer information about what people ate, how they lived, and even their social structures. This research helps us understand human evolution and the changes in our diets over time. In conclusion, the jawbone is a remarkable structure that serves multiple essential functions in our lives. From enabling us to eat and communicate to providing valuable information about our health and history, the jawbone is truly indispensable. As we continue to learn more about the human body, it becomes increasingly clear that every part, including the jawbone, plays a vital role in our overall well-being and understanding of humanity's past.

人体是工程的奇迹，其中一个最引人入胜的组成部分就是下颌。下颌骨在我们的日常生活中发挥着至关重要的作用，使我们能够执行基本功能，如吃、说和表达情感。理解下颌骨的解剖结构和功能可以提供我们如何与周围世界互动的见解。 下颌骨由两个主要部分组成：上颌，称为上颌骨（maxilla），和下颌，称为下颌骨（mandible）。上颌骨承载上排牙齿，并形成眼眶的一部分，而下颌骨是颅骨中唯一可动的骨骼，允许嘴巴的开合。这种运动对咀嚼食物至关重要，这是消化过程的第一步。当我们咀嚼时，下颌骨与咀嚼肌一起工作，包括咬肌和颞肌。这些肌肉收缩以使下颌骨上下和左右移动，促进食物分解成更小的可消化块。 此外，下颌骨在交流中也扮演着重要角色。我们的说话能力在很大程度上依赖于下颌骨的运动。下颌骨的位置和运动有助于塑造我们发出的声音，使我们能够清晰地表达单词。此外，面部表情通常涉及下颌骨的运动，传达如快乐、悲伤或惊讶等情感。例如，当我们微笑时，下颌骨以一种增强我们面部表情的方式移动，使他人更容易理解我们的感受。 除了其功能角色外，下颌骨也可能成为健康问题的来源。颞下颌关节（TMJ）疾病等状况可能会影响下颌骨及周围肌肉，导致疼痛和不适。TMJ疾病可能由多种因素引起，包括压力、磨牙或下颌骨的错位。及时解决这些问题至关重要，因为它们可能显著影响一个人的生活质量。 此外，下颌骨也是人类学和考古学研究的重要领域。研究人员经常分析古代下颌骨以获取过去人群饮食和健康的见解。通过检查牙齿的磨损模式和下颌骨的整体状况，科学家可以推断出人们吃了什么、他们如何生活，甚至他们的社会结构。这项研究帮助我们理解人类的进化和饮食随时间变化的过程。 总之，下颌骨是一个非凡的结构，在我们的生活中发挥着多个重要功能。从使我们能够进食和交流到提供有关我们健康和历史的重要信息，下颌骨确实不可或缺。随着我们对人体了解的不断深入，越来越明显的是，每个部分，包括下颌骨，在我们整体健康和对人类过去的理解中都发挥着至关重要的作用。