covalent
英 ['k??v?l?nt]
美 ['kove?l?nt]
释义：covalent bond（化学）共价键
例句：The covalent bonds between atoms are very strong.
原子之间的共价键非常牢固。
covalent是一个化学术语，通常用来描述两个或多个分子之间通过共价键相互连接的情况。在日常生活中，我们也会经常听到或使用这个词组。
基础释义：covalent指的是通过共价键连接的分子或化合物，它们之间通过电子的转移和共享形成稳定的状态。
发音：covalent的发音为[?k??v?l?nt]。
英语范文：
标题：Covalent Bonding in Chemistry and Life
Covalent bonding is a fundamental concept in chemistry that plays a crucial role in the formation of many substances we encounter in our daily lives. It refers to the formation of strong chemical bonds between two or more atoms or molecules through the sharing or transfer of electrons.
In chemistry, covalent bonding is commonly seen in compounds such as water, carbon dioxide, and silicon dioxide. These substances are composed of atoms that share electrons to form stable structures. Similarly, covalent bonding can also be found in biological systems, where amino acids and nucleic acids are linked together to form proteins and DNA.
Covalent bonding is essential for the stability and function of many materials and substances. It allows for precise control over the arrangement and orientation of atoms and molecules, leading to the formation of highly ordered structures with specific properties. Furthermore, covalent bonding plays a key role in chemical reactions, enabling chemical bonds to be formed and broken in a controlled manner.
In conclusion, covalent bonding is a fundamental concept that underlies the structure and function of many substances in our world. Understanding covalent bonding is crucial for understanding the chemistry of life and for developing new materials with specific properties and functions.
covalent
Covalent bonds are formed when atoms share their electrons. This sharing creates strong bonds that are often used in modern technology. For example, silicon and oxygen form covalent bonds in glass and ceramics, which are essential for their strength and durability. Additionally, covalent bonds are commonly found in organic compounds, such as carbon dioxide and water.
[举一个例子]
Covalent bonding is also important in biology. In proteins, amino acids form covalent bonds to create complex structures that are essential for life. Additionally, DNA strands are held together by covalent bonds between bases. Understanding covalent bonding is crucial for understanding the structure and function of life.
[参考译文]
在化学中，共价键是由原子共享电子形成的。这种电子共享通常会产生强键，在现代技术中经常使用。例如，玻璃和陶瓷中的硅和氧通过共价键形成，这对它们的强度和耐用性至关重要。此外，在有机化合物中，如二氧化碳和水，也经常发现共价键。
在生物学中，共价键的形成也至关重要。蛋白质中的氨基酸通过共价键形成复杂的结构，这对生命至关重要。此外，DNA双螺旋是由碱基之间的共价键连接而成的。理解共价键对于理解生命结构和功能至关重要。
[写作建议]
你可以在作文中使用一些具体的例子来支持你的观点，比如在玻璃和陶瓷中的硅氧键、蛋白质中的氨基酸之间的共价键、DNA中的碱基之间的共价键等。同时，你可以使用一些生动的语言来描述这些化学过程，让读者更好地理解。
希望这个答复符合你的要求。如果需要更多信息，请随时告诉我！
