exp
re
ssion
复数形式
expressions
1
表情, 目光
a specific look on someone's face, indicating what they are feeling or thinking
- Her eyes widened in surprise, an expression that conveyed her shock better than words ever could.
- A gentle smile was his constant expression, making him seem approachable to everyone he met.
- The teacher's stern expression quickly silenced the noisy classroom.
- His face held an expression of deep concentration as he worked on the complex problem.
- The child's joyful expression upon seeing the puppy was truly heartwarming.
2
表达
a way of communicating a feeling or idea without speaking
- A thumbs-up is a universal expression of approval or agreement.
竖起大拇指是赞同或同意的普遍表达。
- She gave a slight nod, an expression of her silent consent to the plan.
她轻轻点了点头，这是她对计划默默同意的表达。
- His dance was an expression of freedom and creativity, captivating the audience.
他的舞蹈是自由和创造力的表达，吸引了观众。
- The artist’s painting was a vivid expression of his inner turmoil.
艺术家的画作是他内心动荡的生动表达。
- The silence between them was an expression of the tension that neither wanted to acknowledge.
他们之间的沉默是双方都不愿承认的紧张的一种表达。
3
表达
the act of showing one’s ideas or feelings through words or actions
- Poetry is a beautiful form of expression, allowing one to convey deep emotions and thoughts.
诗歌是一种美丽的表达形式，可以传达深刻的情感和思想。
- He found expression in music, where words failed him.
他在音乐中找到了表达，在那里言语让他失望。
- Her activism was an expression of her commitment to social justice.
她的激进主义是她对社会正义承诺的表达。
- The novel was an expression of the author’s personal experiences during the war.
这部小说是作者战争期间个人经历的表达。
- Laughter is often an expression of joy, but it can also mask sadness.
笑声通常是快乐的表达，但它也可以掩盖悲伤。
4
表达, 习语
a word or phrase, often an idiomatic one
An expression is a word or phrase that conveys a specific idea, emotion, or meaning, often used in a particular context. Expressions can be literal, where the meaning is clear and straightforward, or idiomatic, where the meaning is not obvious from the individual words. For example, the expression "kick the bucket" is an idiomatic phrase meaning to die, which may not be understood by looking at the words alone. Expressions play a crucial role in communication, as they enrich language and allow speakers to convey complex thoughts and feelings effectively.
- “Bite the bullet” is an expression that means to endure a painful experience with courage.
“Bite the bullet”是一个表达，意思是勇敢地忍受痛苦的经历。
- The phrase “once in a blue moon” is an expression used to describe something that happens very rarely.
短语“千载难逢”是用来描述很少发生的事情的表达方式。
- “Break the ice” is a common expression for initiating conversation in a social setting.
“破冰”是在社交场合中开始对话的常见表达。
- He used the expression “hit the hay” to announce he was going to bed.
他用了“睡觉”这个表达来宣布他要上床睡觉了。
- The idiom “spill the beans” is an expression meaning to reveal a secret.
成语“spill the beans”是一个表达，意思是透露秘密。
5
6
表达式, 公式
a combination of numbers, variables, operations, and grouping symbols that collectively represent a numerical value or relationship
- The algebraic expression ( 2x + 3 ) represents a linear equation when set equal to zero.
代数表达式（2x + 3）在等于零时表示一个线性方程。
- In calculus, the expression ( rac{d}{dx} f(x) ) denotes the derivative of the function ( f(x) ).
在微积分中，表达式 ( \frac{d}{dx} f(x) ) 表示函数 ( f(x) ) 的导数。
- The quadratic formula is derived from the standard form of a quadratic expression.
二次公式是从二次表达式的标准形式推导出来的。
- The trigonometric identity ( sin^2(x) + cos^2(x) = 1 ) is an important mathematical expression.
三角恒等式 ( sin^2(x) + cos^2(x) = 1 ) 是一个重要的数学表达式。
- Euler’s formula, ( e^{ipi} + 1 = 0 ), is often cited as a beautiful mathematical expression due to its simplicity and depth.
欧拉公式，( e^{ipi} + 1 = 0 )，由于其简洁和深刻，常被引用为美丽的数学表达式。
同义词：
7
表达
the act of forcing something out by squeezing or pressing
8
表达, 短语
a group of words that form a constituent of a sentence and are considered as a single unit
反义词：
9
基因表达, 基因表現
the process by which information from a gene is used to synthesize functional gene products, such as proteins, which can influence an organism's traits
- Gene expression is regulated by various factors, including environmental signals and regulatory proteins.
基因表达受多种因素调控，包括环境信号和调控蛋白。
- The scientist measured the expression levels of several genes involved in the inflammatory response.
科学家测量了参与炎症反应的几个基因的表达水平。
- Abnormal expression of certain genes can lead to the development of cancer.
某些基因的异常表达可能导致癌症的发展。
- Techniques like PCR and microarrays are used to study gene expression in different tissues.
像PCR和微阵列这样的技术被用来研究不同组织中的基因表达。
- The expression of the gene was significantly higher in the mutated strain compared to the wild type.
与野生型相比，突变株中基因的表达显著更高。