Vocabulary Cards B2
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B2 adjective
economical
经济的
Meaning
Careful in the use of resources; providing good value or efficiency.
Example
Driving a hybrid car is economical in the long run.
B2 adverb
economically
经济地
Meaning
in a way that relates to economics or is efficient and not wasteful.
Example
The company is trying to operate more economically this year.
B2 noun
ecosystem
生态系统
Meaning
A biological community of interacting organisms and their physical environment.
Example
A balanced ecosystem is crucial for environmental sustainability.
B2 adjective
Edible
可食用的
Meaning
safe to eat; suitable for consumption
Example
Only edible mushrooms should be used in cooking.
B2 noun
editorial
社论
Meaning
A newspaper article expressing the opinion of the editor or publisher.
Example
The newspaper published an editorial criticizing government policy.
B2 noun
educator
教育工作者
Meaning
a person who provides education; a teacher or instructor
Example
She is a dedicated educator who inspires her students every day.
B2 noun
effectiveness
效能
Meaning
the degree to which something is successful in producing a desired result.
Example
The effectiveness of the new policy is still being evaluated.
B2 noun
efficiency
效率
Meaning
The state or quality of being efficient; achieving maximum productivity with minimum wasted effort or expense.
Example
Efficiency in communication is crucial for businesses.
B2 adverb
efficiently
高效地
Meaning
in a way that achieves maximum productivity with minimum wasted effort or expense
Example
She managed to complete the task efficiently within the deadline.
B2 noun
Ego
自我; 自尊
Meaning
a person's sense of self-esteem or self-importance
Example
His big ego prevented him from accepting criticism from others.
B2 verb, adjective
elaborate
详细说明 / 设计复杂的
Meaning
verb: to explain something in detail; adjective: detailed and complicated in design
Example
She asked him to elaborate on his proposal.
B2 adjective
Elastic
弹性
Meaning
able to stretch and return to original shape; flexible; adaptable
Example
The elastic band can stretch and return to its original shape.
B2 verb
elect
选举
Meaning
To choose someone for a position or office by voting.
Example
The citizens elected a new president.
B2 adjective
electoral
选举的
Meaning
related to elections or voting
Example
The electoral process in the country has been reformed in recent years.
B2 noun
Electric drill
电动钻孔机
Meaning
A power tool used for drilling holes in various materials
Example
He used an electric drill to make holes in the wall for hanging pictures.
B2 verb
elevate
提升，抬高，升高到更高的位置或更重要的水平
Meaning
To lift to a higher position; to raise to a more important or impressive level.
Example
Good leadership can elevate team performance.
B2 noun
eligibility
资格
Meaning
The state of having the right to do or obtain something through satisfaction of the appropriate conditions.
Example
Eligibility criteria maintain fairness.
B2 adjective
eligible
有资格的
Meaning
Having the right to do or obtain something through satisfaction of the appropriate conditions.
Example
Only eligible candidates are considered for appointments.
B2 verb
eliminate
消除
Meaning
To completely remove or get rid of something.
Example
Eliminate time-wasting habits.
B2 noun
elimination
消除
Meaning
The complete removal or destruction of something.
Example
The elimination of emissions is a priority.
B2 noun
elite
精英
Meaning
A select group that is superior in terms of ability or qualities.
Example
Only the elite were invited to the exclusive event.
B2 verb
embark
开始
Meaning
to begin a journey, project, or activity
Example
She decided to embark on a new career in medicine.
B2 verb
embarking
开始旅行
Meaning
Beginning a journey or enterprise.
Example
The group is embarking on a long journey.
B2 noun
embarrassment
尴尬
Meaning
a feeling of self-consciousness, shame, or awkwardness
Example
Her face turned red with embarrassment after the mistake.