sac

简明释义

英[sæk]美[sæk]

n. [生物]囊；液囊

n. （Sac）人名；（西）萨克

英英释义

单词用法

同义词

反义词

例句

1.The times of correct reaction and the latency of SAC were observed.

分别观察各组幼鼠SAC行为的正确反应次数和反应潜伏期。

2.More than 750,000 have graduated from SAC, with many seeking employment in engineering, aviation, education and a wide variety of other professions.

超过75万人从SAC毕业，其中许多人在工程、航空、教育和其他各种领域中寻找工作机会。

3.Chris has talked about pandas being an evolutionary cul-de-sac, and it's certainly unusual for a carnivore to take up herbivory.

克里斯曾经说熊猫是进化的尽头，而对于食肉动物来说，摄取食草动物是很不寻常的。

4.Cessna expects SAC to produce 150 aircraft next year.

塞斯纳期望沈飞明年生产150架。

5.Worse was to come when tests also confirmed a tear in the amniotic sac, which meant the waters were leaking.

更糟糕的是，他们还检测到，羊膜囊也破裂了，羊水开始外流。

6.One touch of a female's egg sac and they go ballistic, grappling any other male within reach.

变得争强好胜。 仅仅是对雌性卵囊接触也会使得他们反应过度，和范围内潜在的雄性扭打一团。

7.The blast pierced Grievous' pressurized gut sac and burned its way through his vital organs.

能量束穿过格里弗斯的增压内脏囊，一路烧到其要害器官。

8.Perhaps we are really talking about amniotic fluid, which surrounds the foetus in the birth sac.

也许我们真正在谈论的是羊水，也就是包围着胎儿的那些液体。

9.To be operated by SAC, the facility will be completed by the end of the year and will start production next year.

由沈飞来运作，工厂将在年底完成，明年投产。

10.The doctor explained that the fluid-filled sac (囊) in my knee was causing the pain.

医生解释说，我膝盖里的液体-filled sac (囊) 导致了疼痛。

11.During the hike, I noticed a sac (囊) under the skin of the animal we found.

在徒步旅行中，我注意到我们发现的动物皮肤下有一个 sac (囊)。

12.The biologist studied the reproductive sac (囊) of the frog.

生物学家研究了青蛙的生殖 sac (囊)。

13.In cooking, a sac (囊) of spices can enhance the flavor of the dish.

在烹饪中，一个 sac (囊) 的香料可以增强菜肴的味道。

14.The jellyfish has a bell-shaped body with a central sac (囊) for digestion.

水母有一个钟形的身体，中央有一个 sac (囊) 用于消化。

作文

The human body is a complex system made up of various organs and structures that work together to maintain overall health. One interesting component of this system is the sac, which plays a crucial role in several biological processes. A sac can be defined as a pouch-like structure that holds substances such as fluid, air, or other materials. In humans, we can find different types of sacs, each serving unique functions. For example, the amniotic sac surrounds and protects a developing fetus during pregnancy, providing a cushioning environment that allows for safe growth. It is filled with amniotic fluid, which not only supports the fetus but also helps regulate temperature and provides a space for movement. Another important sac in the human body is the synovial sac, which is found in joints. This sac produces synovial fluid, a thick liquid that lubricates joints and reduces friction during movement. Without the presence of synovial sacs, our joints would experience significant wear and tear, leading to pain and mobility issues. Thus, these sacs are essential for maintaining joint health and facilitating smooth movements. In addition to their role in human anatomy, sacs can also be found in various animals and plants. For instance, in certain mammals, the cheek sacs are used to store food temporarily, allowing the animal to eat quickly and digest later. Similarly, in plants, a sac can refer to a protective covering that houses seeds or spores, ensuring their survival until conditions are favorable for growth. The concept of a sac extends beyond biology and can be metaphorically applied to various aspects of life. For example, we often talk about emotional sacs where we store feelings and memories. Just like physical sacs, these emotional containers can become too full, leading to stress and anxiety if not addressed properly. Therefore, it is important to periodically 'empty' our emotional sacs through activities such as talking to friends, journaling, or engaging in creative outlets. In conclusion, the term sac encompasses a variety of meanings across different contexts. Whether we are discussing biological structures, animal adaptations, or metaphorical representations of our emotional states, understanding the concept of a sac helps us appreciate the intricacies of both nature and human experience. By recognizing the importance of sacs in our bodies and lives, we can better understand how to take care of ourselves and promote overall well-being.

人体是一个复杂的系统，由各种器官和结构组成，这些器官和结构共同工作以维持整体健康。这个系统中一个有趣的组成部分是sac，它在多个生物过程中发挥着至关重要的作用。sac可以定义为一个袋状结构，用于盛放液体、空气或其他材料。在人类中，我们可以发现不同类型的sacs，每种都有独特的功能。例如，羊膜sac包围并保护怀孕期间发育中的胎儿，提供一个缓冲环境以便安全生长。它充满了羊水，不仅支持胎儿，还帮助调节温度，并提供运动空间。 另一个在人类身体中重要的sac是滑液sac，它位于关节中。这个sac产生滑液，这是一种粘稠的液体，可以润滑关节并减少运动时的摩擦。如果没有滑液sacs的存在，我们的关节将经历显著的磨损，导致疼痛和活动问题。因此，这些sacs对于维持关节健康和促进顺畅运动至关重要。 除了在人体解剖学中的作用，sacs还可以在各种动物和植物中找到。例如，在某些哺乳动物中，面颊sacs用于暂时储存食物，使动物能够快速进食并稍后消化。同样，在植物中，sac可以指一个保护性覆盖物，里面盛放种子或孢子，确保它们在适合生长的条件下生存。 sac的概念超越了生物学，可以隐喻性地应用于生活的各个方面。例如，我们常常谈论情感sacs，在这些sacs中我们储存感觉和记忆。就像物理sacs一样，这些情感容器可能会变得过满，如果不加以处理，就会导致压力和焦虑。因此，定期“清空”我们的情感sacs是很重要的，通过与朋友交谈、写日记或参与创造性活动来实现。 总之，sac这个术语在不同的上下文中包含多种含义。无论我们讨论的是生物结构、动物适应还是我们情感状态的隐喻表现，理解sac的概念有助于我们欣赏自然和人类经验的复杂性。通过认识到sacs在我们身体和生活中的重要性，我们可以更好地理解如何照顾自己，促进整体健康。