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B2 noun /ˌnɒməˈneɪʃən/

nomination

提名
Meaning
The act of formally proposing someone for a role, position, or award.
Example
Her nomination for the award surprised everyone.
她的奖项提名让大家都感到惊讶。
C2 verb /ˈnɔːzieɪt/

nauseate

引起恶心
Meaning
To make someone feel sick, with an inclination to vomit.
Example
The spoiled food nauseated him quickly.
坏掉的食物很快让他感到恶心。
B1 adverb /ˈnætʃərəli/

Naturally

自然地
Meaning
in a natural manner; as expected; of course
Example
She naturally excels in mathematics.
她在数学上自然地出色。
C1 adjective ˌnɒnˈvɜːr.bəl

nonverbal

非语言
Meaning
Communication using body language, facial expressions, or gestures instead of words
Example
Nonverbal cues play a crucial role in effective communication.
非语言提示在有效沟通中起着至关重要的作用。
C1 adjective /ˈnæv.ɪ.ɡə.bəl/

Navigable

可航行的
Meaning
suitable for ships or boats to travel on; able to be navigated
Example
The river is navigable for small boats during the rainy season.
这条河在雨季适合小船通行。
C2 adjective /ˌnɒnˈtrɪviəl/

nontrivial

非平凡
Meaning
Not simple or easy; requiring effort or significant thought.
Example
Solving the equation turned out to be a nontrivial task.
解决方程被证明是一个非平凡的任务。
C1 noun /ˈnɑv.ɪs/

Novice

新手
Meaning
a person new to or inexperienced in a field or situation; a beginner
Example
As a novice driver, she was very careful on the road.
作为一个新手司机，她在路上非常小心。
C1 noun /ˈnjʊə.rəʊ.trænsˌmɪt.ərs/

neurotransmitters

神经传导物质
Meaning
Chemical messengers that transmit signals across nerve synapses, affecting mood, behavior, and cognitive functions.
Example
Serotonin and dopamine are key neurotransmitters affecting mood.
血清素和多巴胺是影响情绪的关键神经传导物质。
B1 noun /ˈnɑn.sens/

Nonsense

胡说
Meaning
words or language that have no meaning; foolish or unacceptable behavior
Example
Stop talking nonsense and be serious!
停止胡说八道，认真点！
B2 adjective /ˈnær.ə.tɪv/

Narrative

叙述的; 描述性的; 讲述故事的
Meaning
relating to storytelling; descriptive; telling a story; recounting events
Example
The narrative structure of the novel was quite complex.
这本小说的叙述结构相当复杂。
C2 noun /nɛˈkroʊsɪs/

necrosis

坏死
Meaning
the death of body tissue due to disease, injury, or lack of blood supply
Example
The doctor explained that the patient’s wound showed signs of necrosis.
医生解释说，病人的伤口显示出坏死的迹象。
A2 noun /niːs/

niece

侄女; 外甥女
Meaning
the daughter of one's brother or sister
Example
My niece is studying at the university this year.
我的侄女今年在大学学习。
A2 conjunction /nɔːr/

nor

也不
Meaning
used to introduce a negative clause after a negative statement
Example
He didn't call, nor did he send a message.
他没有打电话，也没有发送消息。
A2 adjective /ˈnɪəˌbaɪ/

nearby

附近
Meaning
close to a particular place or person
Example
The nearest gas station is nearby.
最近的加油站就在附近。
C2 noun /naɪˈdʒel.ə/

Nigella

黑孜然
Meaning
small black seeds with a nutty, slightly bitter flavor, also known as black cumin or black seed
Example
Sprinkle nigella seeds on top of the bread before baking.
在面包上撒上黑孜然种子，然后烤制。
B2 noun /ˈnɒvəlɪst/

novelist

小说家
Meaning
a person who writes novels
Example
The novelist spent years writing his new book.
小说家花了多年写他的最新小说。
A1 adverb /nɒt/

not

不
Meaning
used to make a word or phrase negative
Example
I do not like spicy food.
我不喜欢辣的食物。
B2 adjective /ˈnjuː.mər.əs/

Numerous

众多的; 很多的; 丰富的
Meaning
existing in large numbers; many; abundant
Example
There are numerous benefits to exercising regularly.
定期锻炼有许多好处。
B2 adverb /ˈneɪmli/

Namely

即; 特别是;
Meaning
that is to say; specifically; to be precise
Example
Three cities, namely Paris, London, and Rome, were visited.
三个城市，即巴黎、伦敦和罗马，被参观。
A1 adverb /noʊ/

no

不
Meaning
used to give a negative response or to show disagreement
Example
She said no to the invitation.
她对邀请说了不。
C2 noun /nəˈkrɒpəlɪs/

necropolis

古代墓地
Meaning
a large ancient cemetery with elaborate tombs
Example
The archaeologists discovered artifacts in the necropolis of the ancient city.
考古学家在古城的内克罗波利斯中发现了文物。
A2 adjective /ˈnæsti/

nasty

令人不快的
Meaning
very unpleasant, unkind, or offensive
Example
He made a nasty comment about her dress.
他对她的裙子发表了令人不快的评论。
A2 noun /ˈneɪbər/

neighbor

邻居
Meaning
a person living next door or nearby
Example
My neighbor lent me some sugar when I ran out.
我的邻居在我糖用完时借给了我一些糖。
C2 adjective /ˈneb.jə.ləs/

Nebulous

模糊的; 不明确的; 朦胧的
Meaning
vague or unclear; lacking definite form; hazy
Example
His plans for the future remain nebulous and unclear.
他的未来计划仍然模糊不清。
C2 adjective /ˈnɪɡərdli/

niggardly

小气
Meaning
unwilling to spend or give; stingy or miserly
Example
He was too niggardly to leave a decent tip.
他太小气，舍不得给个体面的小费。
C2 noun /ˈniːəˌfaɪt/

neophyte

新手
Meaning
A beginner or novice in a subject, skill, or belief.
Example
As a neophyte in programming, she often asked for guidance from her mentor.
作为编程的新手，她经常向她的导师请教。
C1 adjective /ˈnjuː.tri.ənt dɛns/

nutrient-dense

营养丰富
Meaning
Rich in nutrients and high nutritional value.
Example
Organic food is often more nutrient-dense than processed food.
有机食品通常比加工食品更富含营养。
B2 noun /nɒsˈtæl.dʒə/

nostalgia

怀旧
Meaning
A sentimental longing for the past, typically for a period or place with happy personal associations.
Example
Listening to old songs fills me with nostalgia.
听老歌让我充满怀旧之情。
C1 noun /ˈnɒnʃələns/

nonchalance

漫不经心
Meaning
A relaxed and calm state, showing lack of concern or interest.
Example
She answered the tough questions with surprising nonchalance.
她用出人意料的漫不经心回答了那些难题。
C1 noun /ˈnɑːrsɪsɪst/

narcissist

自恋者
Meaning
A person who has an excessive interest in or admiration of themselves.
Example
Everyone avoided him because he was a narcissist.
每个人都避开他，因为他是一个自恋者。
C2 adjective /ˈnjuːmɪnəs/

numinous

神秘的
Meaning
having a strong spiritual or mysterious quality
Example
The temple had a numinous atmosphere that inspired awe.
这座寺庙有一种神秘的氛围，令人敬畏。
B2 adverb /ˈnɔɪzɪli/

Noisily

喧闹地
Meaning
in a way that makes a lot of noise; loudly
Example
The children were playing noisily in the playground.
孩子们在操场上喧闹地玩耍。
C1 verb /nɪˈɡeɪt/

negate

Meaning
To cancel out or make ineffective; to deny the truth of something.
Example
The new evidence will negate the claims made earlier.
A2 adjective /ˈnɜː.vəs/

Nervous

紧张, 焦虑
Meaning
feeling anxious or worried; relating to the nerves; easily agitated
Example
She felt nervous before her job interview.
她在面试前感到紧张。
B2 adjective /ˈnoʊ.bəl/

Noble

高尚的；贵族的
Meaning
having high moral qualities; honorable; generous; of aristocratic birth
Example
His noble actions helped many people in need.
他的高尚行为帮助了许多需要帮助的人。
C1 noun /njʊəˈrəʊ.sɪs/

neurosis

神经症
Meaning
A relatively mild mental illness that is not caused by organic disease, involving symptoms of stress.
Example
His neurosis made social interactions difficult.
他的神经症使得社交互动变得困难。
C1 noun /ˈnoʊmæd/

nomad

游牧民
Meaning
A person who has no permanent home and moves from place to place.
Example
The desert was once home to nomads who lived by herding animals.
沙漠曾经是游牧民的家，他们靠放牧生存。
C2 noun /ˌnɒn ˈsɛkwɪtər/

non sequitur

无关的评论
Meaning
a statement or conclusion that does not logically follow from the previous statement
Example
His comment about the weather was a complete non sequitur during the budget discussion.
他关于天气的评论在预算讨论中完全是无关的评论。
A2 adverb /ˈnaʊədeɪz/

nowadays

如今
Meaning
At the present time; in contrast with the past.
Example
Nowadays, many people prefer shopping online.
如今，许多人更喜欢在线购物。
C1 adjective /ˈneɡ.lɪ.dʒənt/

Negligent

疏忽的
Meaning
failing to take proper care; careless; showing lack of attention
Example
The negligent driver caused a serious accident.
疏忽的司机造成了一起严重的事故。
A2 noun /ˈnɛtˌwɜrk/

network

网络
Meaning
A system of interconnected people, things, or computers.
Example
She built a strong professional network.
她建立了一个强大的职业网络。
C1 noun njuːˈtræl.ə.ti

neutrality

中立
Meaning
The state of not supporting or helping either side in a conflict, disagreement, etc.; impartiality.
Example
Neutrality fosters trust in decision-making.
中立有助于决策中的信任。
A1 noun /naɪt/

night

夜晚
Meaning
the time of darkness between one day and the next, when most people sleep
Example
She loves going for walks at night.
她喜欢晚上散步。
B2 noun /ˈnæʃənəl ˈænθəm/

national anthem

国歌
Meaning
an official patriotic song of a country, performed at national events and ceremonies
Example
The national anthem was played before the international match.
国际比赛前演奏了国歌。
A2 noun /ˈnoʊ.tɪs/

Notice

通知
Meaning
attention to something; a written or printed announcement
Example
The notice on the board announced the school closure.
公告板上的通知宣布了学校关闭。
C1 adjective /ˌniːoʊˈlɪθɪk/

neolithic

新石器时代的
Meaning
Relating to the later part of the Stone Age, when ground or polished stone weapons and tools prevailed.
Example
Neolithic communities began practicing agriculture and domesticating animals.
新石器时代的社区开始从事农业和驯化动物。
A1 noun /nɔːrθ/

north

北方
Meaning
the direction toward the top of a map or the opposite of south
Example
We traveled north to reach the mountains.
我们向北旅行，以到达山脉。
C1 noun /ˈnɔːrmən/

Norman

Meaning
A member of a people of mixed Scandinavian and Frankish origin who settled in Normandy, or relating to their culture.
Example
The Normans conquered England in 1066.
C1 noun ˌnæn.oʊ.tekˈnɒl.ə.dʒi

nanotechnology

纳米技术
Meaning
The branch of technology that deals with dimensions and tolerances of less than 100 nanometers.
Example
Nanotechnology is advancing medical treatments.
纳米技术正在推动医疗治疗的发展。
C1 verb /ˈnɛsəl/

nestle

依偎
Meaning
to settle or lie comfortably within or against something
Example
The child nestled into her mother's arms.
孩子依偎在她母亲的怀里。
A2 adverb /ˈnaɪsli/

nicely

很好地
Meaning
in a pleasant, kind, or satisfactory manner; carefully and appropriately
Example
She explained the problem nicely so everyone could understand.
她把问题解释得很好，让大家都明白了。
A1 adverb /naʊ/

now

现在
Meaning
at the present moment or time
Example
I am studying now.
我现在正在学习。
B2 adjective /ˈnoʊtɪsəbl/

noticeable

显著的
Meaning
Easily seen, observed, or recognized.
Example
There was a noticeable improvement in her performance.
她的表现有了显著的改善。
C2 adjective ˌnjʊə.rəʊ.saɪənˈtɪ.fɪk

neuroscientific

神经科学的
Meaning
Related to the scientific study of the brain and nervous system.
Example
Neuroscientific research helps understand memory retention.
神经科学研究有助于理解记忆保持。
B2 adverb /ˌnʌnðəˈlɛs/

nonetheless

尽管如此
Meaning
in spite of that; nevertheless
Example
It was raining, but nonetheless, they went hiking.
下着雨，但尽管如此，他们还是去远足了。
B2 noun nɪˈsesɪti

necessity

必要性
Meaning
The fact of being required or indispensable; an indispensable thing.
Example
Waste management is a necessity for environmental sustainability.
废物管理是环境可持续性的必要性。
C1 adjective /ˈneɪzl/

nasal

鼻音的
Meaning
Relating to the nose; a sound produced through the nose.
Example
He spoke with a nasal voice due to his cold.
他因感冒说话带有鼻音。
C1 noun ˈnærətɪv staɪl

narrative style

叙事风格
Meaning
The way in which a story is told, including the point of view and the voice of the narrator.
Example
Dickens' narrative style is engaging and emotional.
狄更斯的叙事风格引人入胜且富有情感。
C1 adjective /ˈnɔɪz.ləs/

Noiseless

无声的; 完全安静的
Meaning
making no sound; completely silent
Example
She moved through the house in noiseless steps so as not to wake the baby.
她走过房子，步伐无声，以免吵醒宝宝。
C1 adjective /ˈnjʊrəl/

neural

Meaning
Relating to nerves or the nervous system.
Example
Scientists study neural connections in the brain.
A2 conjunction /ˈniːðər/

neither

既不
Meaning
used to connect two negative alternatives
Example
Neither the manager nor the assistant could attend the meeting.
经理和助理都无法参加会议。
C1 verb /ˈnʌlɪfaɪ/

nullify

取消
Meaning
to make something legally invalid or ineffective
Example
The court decided to nullify the contract.
法院决定取消合同。
B2 noun ˈneɪʧər ɪnˈθjuːziæsts

Nature Enthusiasts

自然爱好者
Meaning
People who have a passionate interest in and love for the natural world and outdoor activities.
Example
Nature enthusiasts often visit Sajek Valley for its scenic beauty.
自然爱好者常常前往萨杰克山谷，欣赏其美丽的景色。
B1 adjective /ˈnær.oʊ/

Narrow

狭窄的; 限制的; 受限的
Meaning
having a small width; thin; limited in scope; restricted
Example
The narrow street was barely wide enough for two cars.
这条狭窄的街道几乎不足以容纳两辆车。
C1 noun /ˈnjuːtrɪənt dɪˈfɪʃənsi/

nutrient deficiency

营养不足
Meaning
A lack of essential nutrients required for healthy plant growth, which can result in poor crop development, reduced yields, and increased susceptibility to diseases.
Example
Nutrient deficiency in the soil can reduce crop productivity.
土壤中的营养不足会降低作物的生产力。
B2 adjective /ˈniː.di/

Needy

贫困的; 需要帮助的; 缺乏基本生活必需品的
Meaning
requiring help or support; poor; lacking basic necessities
Example
The charity helps needy families during the winter.
慈善在冬季帮助贫困家庭。
B2 noun noʊˈbel praɪz

Nobel Prize

诺贝尔奖
Meaning
Any of six international prizes awarded annually for outstanding work in physics, chemistry, physiology or medicine, literature, economics, and the promotion of peace.
Example
Nobel Prize recognition evaded Bose's contributions.
诺贝尔奖的认可未能体现博斯的贡献。
C1 adjective /ˌnɒnˈvɜː.bəl/

non-verbal

不涉及或使用语言或演讲; 通过手势、肢体语言或面部表情进行交流。
Meaning
Not involving or using words or speech; communicated through gestures, body language, or facial expressions.
Example
Non-verbal cues are just as important as words.
非语言提示与言语同样重要。
B1 noun /ˈnɜːrsəri/

nursery

托儿所
Meaning
a room or place where young children are cared for
Example
She works in a nursery, taking care of infants.
她在托儿所工作，照顾婴儿。
B2 adjective /ˈneɪbərɪŋ/

neighboring

邻近的
Meaning
situated near or next to another place; adjacent or nearby.
Example
They visited a neighboring village for the festival.
他们去邻村参加节日活动。
C2 adjective ˌnjʊə.rəʊ.prəˈtek.tɪv

neuroprotective

神经保护
Meaning
Having the ability to protect nerve cells from damage, degeneration, or impaired function.
Example
Omega-3 fatty acids have neuroprotective benefits.
欧米伽-3脂肪酸具有神经保护作用。
B2 noun /ˈnek.taɪ/

Necktie

领带
Meaning
a strip of cloth worn around the neck under a shirt collar and tied in front
Example
He adjusted his necktie before the important meeting.
他在重要会议前调整了他的领带。
B1 noun/adjective /ˈnɒvəl/

novel

小说 / 新的
Meaning
A long fictional narrative; also something new or unusual.
Example
She spent the weekend reading a historical novel.
她在周末阅读了一本历史小说。
C2 noun /ˌniːoʊˈdɑːrwɪnɪzəm/

neo-darwinism

新达尔文主义
Meaning
A modern interpretation of Darwin's theory of evolution, integrating genetics and natural selection.
Example
Neo-Darwinism combines Darwin’s theory of natural selection with modern genetics.
新达尔文主义将达尔文的自然选择理论与现代遗传学相结合。
C2 adjective /ˈnjuː.trɪ.tɪv/

nutritive

营养的
Meaning
Relating to nutrition; having nourishing qualities.
Example
The nutritive value of the fruit is very high.
水果的营养价值非常高。
C1 noun /ˈnaɪ.tɪŋ.ɡeɪl/

Nightingale

夜莺
Meaning
small songbird known for its beautiful singing, especially at night
Example
The nightingale sang sweetly in the moonlight.
夜莺在月光下甜美地歌唱。
C2 noun ˈnjʊə.rəʊ ˌfiːd.bæk

neurofeedback

一种使用实时显示大脑活动来教授大脑功能自我调节的技术
Meaning
A technique that uses real-time displays of brain activity to teach self-regulation of brain function.
Example
Neurofeedback enhances cognitive performance and relaxation.
神经反馈提高了认知表现和放松。
C1 noun /ˈniːdəlwɜːrk/

needlework

针线活, 刺绣
Meaning
The craft of sewing, embroidery, or knitting done with a needle.
Example
Her grandmother taught her the art of needlework.
她的祖母教她针线活的艺术。
A2 noun /nɔɪz/

Noise

噪音
Meaning
a sound, especially one that is loud or unpleasant
Example
The noise from the construction site was very disturbing.
施工现场的噪音非常扰人。
B2 noun ˌnæv.ɪˈɡeɪ.ʃən

navigation

导航
Meaning
The process or activity of accurately ascertaining one's position and planning and following a route.
Example
GPS technology has improved the navigation of self-driving cars.
GPS 技术改进了自动驾驶汽车的导航。
A1 noun neɪmz

Names

名字
Meaning
A word or set of words by which a person or thing is known.
Example
Names of family members are written on the family tree.
家庭成员的名字写在家谱上。
C1 adjective /nɪˈɡoʊ.ʃi.ə.bəl/

negotiable

可商议的
Meaning
Open to discussion or modification; capable of being bargained for.
Example
The salary offered is negotiable.
提供的薪水是可商议的。
A2 verb /nɜːrs/

nurse

护理
Meaning
to care for someone who is sick or injured; to feed a baby
Example
She nursed her sick mother back to health.
她照顾了生病的母亲，直到她恢复健康。
C1 noun /nɑːtʃ/

notch

刻痕
Meaning
A small cut or groove on the edge or surface of something; a level or degree of achievement.
Example
He carved a notch on the stick to mark the days.
他在棍子上刻了一个刻痕，以标记天数。
C2 verb /ˈnɪɡəl/

niggle

Meaning
to cause slight but persistent annoyance, discomfort, or worry
Example
A small doubt niggled at her mind.
B2 noun /ˈnjuːzˌlɛtər/

newsletter

时事通讯
Meaning
a printed or electronic report containing news or information about a company or organization
Example
The company sends a weekly newsletter to its employees.
公司每周向员工发送时事通讯。
C2 noun /njuːˈmɪzmətɪst/

numismatist

钱币学家
Meaning
A person who studies or collects coins, paper currency, and medals.
Example
The numismatist displayed his rare coin collection at the exhibition.
钱币学家在展览会上展示了他的稀有硬币收藏
C1 noun /ˈneɪ.vəl fɔːrs/

Naval Force

海军
Meaning
the branch of a nation's armed services that conducts military operations at sea
Example
The naval force protected the country's coastline from enemy attacks.
海军保护了国家的海岸线免受敌人攻击
C1 adjective /ˈnɪp.i/

Nippy

寒冷; 刺骨; 快速且灵活的动作
Meaning
cold; chilly; quick and agile in movement
Example
It's quite nippy outside today, you should wear a jacket.
今天外面相当寒冷，你应该穿上夹克。
C2 noun /ˌnjʊə.rəʊˈdʒɛn.ɪ.sɪs/

neurogenesis

大脑中新神经细胞的形成过程
Meaning
The process of forming new nerve cells in the brain.
Example
Scientists are studying neurogenesis to understand brain health.
科学家们正在研究神经发生，以了解大脑健康。
B1 noun /ˈnaɪt.meər/

Nightmare

噩梦
Meaning
a frightening or unpleasant dream; a very unpleasant experience
Example
The exam was a complete nightmare for unprepared students.
考试对未准备的学生来说是一场彻底的噩梦。
C2 noun /niːp/

neap

低潮
Meaning
A tide just after the first or third quarters of the moon when the difference between high and low tide is least.
Example
During a neap tide, the water level change is minimal.
在低潮期间，水位变化最小。
C2 noun /ˈnes.lɪŋ/

Nestling

雏鸟
Meaning
a young bird that has not yet left its nest
Example
The mother bird fed the hungry nestling with worms.
母鸟用虫子喂饥饿的小鸟。
C1 noun /ˌnoʊtəˈraɪəti/

notoriety

恶名
Meaning
The state of being famous or well-known for something bad.
Example
The criminal gained notoriety for his daring escapes.
罪犯因其大胆的逃脱而声名狼藉。
C1 noun /ˌnɑm.əˈni/

Nominee

提名人
Meaning
a person who is nominated for an office, award, or honor
Example
She was the nominee for the Best Actress award.
她是最佳女演员奖项的提名人。
B2 noun ˈnɒv.əl.ti

novelty

新颖
Meaning
The quality of being new, original, or unusual; a new or unfamiliar thing or experience.
Example
The novelty of the invention attracted investors.
发明的新颖性吸引了投资者。
A2 adjective /ˈnætʃərəl/

natural

自然的
Meaning
existing in or derived from nature; not made or caused by humankind
Example
She prefers to use natural ingredients in her cooking.
她更喜欢在烹饪中使用天然的食材。
A1 adverb /ˈnɛvər/

never

从不
Meaning
at no time in the past or future; not ever
Example
I have never seen such a beautiful sunset.
我从未见过如此美丽的日落。
C1 adjective /ˈnɒm.ɪ.nəl/

Nominal

名义上的; 非常小
Meaning
very small in size or amount; existing in name only
Example
He paid only a nominal fee for the membership since he was a student.
他只支付了名义上的会员费，因为他是学生。
C1 adverb /ˈnæroʊli/

Narrowly

勉强地; 刚好
Meaning
by a small margin; barely; in a limited way
Example
She narrowly escaped the accident.
她差点逃脱了事故。
C1 noun /ˈneb.jʊ.lə/

nebula

星云
Meaning
A cloud of gas and dust in outer space, sometimes visible in the night sky.
Example
The Orion Nebula is one of the brightest in the sky.
猎户座星云是天空中最明亮的之一。
C1 noun /ˈnaɪt.fɔːl/

nightfall

夜幕降临
Meaning
the time when night begins; dusk
Example
They decided to return home before nightfall.
他们决定在夜幕降临之前回家。
B1 noun /ˈnɜːrsɪŋ/

nursing

护理
Meaning
the profession or practice of caring for the sick or injured
Example
She is studying nursing to become a healthcare professional.
她在学习护理学，想成为一名医疗专业人员。
B2 adjective /naɪˈiːv/

naive

天真
Meaning
Having a lack of experience or sophistication; overly innocent or trusting.
Example
She was naive to believe the scammer’s story.
她天真地相信了骗子的故事。
C2 adjective /ˌnjuːmɪzˈmætɪk/

numismatic

钱币学的
Meaning
relating to the study or collection of coins, currency, and medals
Example
He has a numismatic collection of rare coins from around the world.
他拥有来自世界各地的稀有硬币收藏。
C2 noun /nɪb/

nib

钢笔尖
Meaning
the pointed end of a pen used for writing or drawing
Example
He dipped the nib into the ink before writing.
他在写字之前把钢笔尖浸入墨水中。
C2 adjective ˌnjʊəroʊˈkɒɡnɪtɪv

neurocognitive

神经认知
Meaning
Related to brain information processing and memory power
Example
Neurocognitive functions decline due to lack of sleep.
由于缺乏睡眠，神经认知功能下降。
B2 verb /nɪˈɡoʊ.ʃi.eɪt/

negotiate

谈判
Meaning
To discuss something formally in order to reach an agreement.
Example
They negotiated a fair deal with the supplier.
他们与供应商谈判达成了公平的交易。
B2 noun /ˌnoʊtɪfɪˈkeɪʃənz/

notifications

通知
Meaning
A notice or announcement, especially an official one.
Example
Turn off notifications to stay focused.
关闭通知以保持专注。
B2 noun /ˈnuː.tri.ənt/

nutrient

营养物质
Meaning
A substance that provides nourishment essential for growth and health of plants or animals.
Example
Plants absorb nutrients from the soil for growth.
植物从土壤中吸收营养物质来生长。
C1 adjective /ˈnɔːrmətɪv/

normative

规范的
Meaning
relating to rules, standards, or norms that govern behavior or beliefs
Example
The study focused on the normative aspects of cultural behavior.
这项研究集中于文化行为的规范性方面。
C1 adjective /ˈneɪm.ləs/

Nameless

无名的; 匿名的; 不知名的; 未识别的
Meaning
having no name; anonymous; unknown; unidentified
Example
The nameless fear haunted him throughout the night.
无名的恐惧整晚困扰着他。
A2 noun /nʌt/

nut

坚果
Meaning
a hard-shelled fruit that contains a seed, or a small metal piece used in machinery
Example
She ate a peanut, which is a type of nut.
她吃了一颗花生，这是坚果的一种。
C1 adjective /ˈneɡ.lɪ.dʒə.bəl/

Negligible

微不足道
Meaning
so small or unimportant as to be not worth considering; insignificant
Example
The side effects of this medicine are negligible.
这种药物的副作用微不足道。
C1 noun /ˌnjʊə.roʊ.plæˈstɪs.ɪ.ti/

neuroplasticity

神经可塑性
Meaning
The brain's ability to reorganize itself by forming new neural connections throughout life.
Example
Neuroplasticity allows the brain to rewire itself after an injury.
神经可塑性使大脑在受伤后能够重新连接。
B2 noun, verb /nɜːrv/

nerve

神经; 勇气
Meaning
A bundle of fibers in the body that transmits signals between the brain and other parts; also courage or audacity.
Example
She gathered the nerve to speak in front of the large audience.
她鼓起勇气在大观众面前发言。
C2 verb /ˈnɪtˌpɪk/

nitpick

Meaning
To find and criticize small or unimportant faults in someone or something.
Example
She tends to nitpick about every little detail.
C1 noun /nɪərˈvɑːnə/

nirvana

Meaning
A state of perfect happiness, peace, and freedom from suffering; in Buddhism, the ultimate goal of liberation.
Example
Meditation helps some people seek nirvana in their lives.
C1 noun /ˈnjuːɑːns/

nuance

细微差别
Meaning
A subtle difference in shade of meaning, appearance, or sound.
Example
He noticed the subtle nuance in her expression.
他注意到她表情中的细微差别。
C1 noun /ˈnɑː.sɪ.sɪ.zəm/

narcissism

自恋
Meaning
Excessive interest in or admiration of oneself; extreme selfishness.
Example
His excessive narcissism made it difficult for him to empathize with others.
他的过度自恋让他很难同情他人。
B1 adverb /ˈnjuːli/

newly

最近
Meaning
in a new or recent manner
Example
She has newly renovated her house.
她最近重新装修了她的房子。