Vocabulary Cards
441 cards available.
C1 adjective
Oppressive
压迫的
Meaning
Harsh and authoritarian; overwhelming; causing distress; tyrannical;
Example
The oppressive heat made it difficult to work outside during the summer.
C2 adjective
opprobrious
侮辱性的
Meaning
Expressing strong criticism or scorn.
Example
He made opprobrious remarks about his opponent.
C2 noun
opprobrium
耻辱, 侮辱
Meaning
Harsh criticism or public disgrace.
Example
The scandal brought opprobrium on the politician.
B2 verb
opt
选择
Meaning
to choose or decide to do something instead of something else
Example
Many students opt to study abroad for better opportunities.
C1 adjective
optic
光学的
Meaning
Relating to the eye or vision.
Example
The optic nerve carries signals from the eye to the brain.
C1 adjective
optical
光学的
Meaning
related to or used in seeing or sight
Example
The optical illusion fooled everyone at the exhibition.
B2 noun
optician
眼镜师
Meaning
A person who makes or sells glasses and contact lenses.
Example
The optician adjusted my new glasses to fit better.
C1 noun
optics
光学
Meaning
The branch of physics dealing with light and vision.
Example
She studied optics to understand how lenses work.
B2 adjective
optimal
最优，最适合的
Meaning
Best or most favorable; the most effective under particular conditions.
Example
The optimal temperature for plant growth is around 25°C.
B2 adjective + noun
optimal temperature
最佳温度
Meaning
The best or most favorable temperature for a particular purpose
Example
Winter provides optimal temperature for farming.
C1 adverb
optimally
最优地
Meaning
In the most effective or efficient way possible.
Example
Tasks should be allocated optimally for maximum output.
B2 noun
optimism
乐观
Meaning
Hopefulness and confidence about the future or the successful outcome of something.
Example
Her optimism helped her overcome difficult times.
B2 noun
Optimist
乐观主义者
Meaning
a person who tends to be hopeful and confident about the future; someone who sees the good side of things
Example
As an optimist, she always believed things would improve.
B2 adjective
optimistic
乐观的
Meaning
hopeful and confident about the future
Example
She is optimistic about the success of her new project.
C1 noun
optimization
优化
Meaning
Improving processes to increase performance and efficiency.
Example
SEO optimization helps websites rank higher on search engines.
C1 verb
optimize
优化
Meaning
To make the best or most effective use of a situation, opportunity, or resource.
Example
The company is working to optimize its supply chain.
C1 adjective
optimized
优化, 改善, 更有效
Meaning
Made as fully perfect, functional, or effective as possible; improved to achieve maximum efficiency.
Example
The system has been optimized for faster performance.
C1 adjective
optimum
最优
Meaning
Most conducive to a favorable outcome; best.
Example
To achieve optimum results, we need to improve efficiency.
B1 noun
Option
选项
Meaning
a thing that is or may be chosen; an alternative course of action
Example
You have the option to work from home or office.
B2 adjective
Optional
可选的
Meaning
not compulsory; left to choice
Example
Wearing a tie is optional for this event.
C1 noun
optometrist
眼科验光师
Meaning
A healthcare professional who examines eyes and prescribes corrective lenses.
Example
The optometrist prescribed new glasses for her.
C1 noun
optometry
验光学
Meaning
The practice or profession of examining the eyes and prescribing corrective lenses.
Example
She studied optometry at the university to become an eye specialist.
C2 noun
opulence
奢华
Meaning
Great wealth or luxuriousness.
Example
The opulence of the mansion was evident in its ornate furnishings.
C2 adjective
opulent
奢华的
Meaning
Ostentatiously rich, luxurious, or lavish.
Example
They hosted an opulent wedding with gold decorations.