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A1 pronoun /ˈnʌθɪŋ/

nothing

什么都没有
Meaning
not anything; no thing
Example
She has nothing to worry about.
她没有什么可担心的。
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。
C1 verb /nʌdʒ/

nudge

轻推
Meaning
To push someone gently, usually with your elbow, in order to attract attention.
Example
She nudged him to be quiet during the meeting.
她在会议中轻轻地用肘部推了他一下，让他保持安静。
C2 adjective /ˈnɒmɪk/

nomic

与法律相关
Meaning
Relating to laws, rules, or systems.
Example
The philosopher discussed the nomic necessity of natural laws.
哲学家讨论了自然法则的诺米克必要性。
A2 adverb /ˈnɔːməli/

Normally

通常
Meaning
in the usual way; under normal circumstances
Example
I normally wake up at 7 AM every day.
我通常每天早上7点醒来。
C2 noun /naɪt kwiːn/

Night queen

夜来香
Meaning
a fragrant white flower that blooms at night and releases strong sweet scent
Example
The night queen flowers filled the garden with their sweet fragrance.
夜来香花让花园充满了甜美的香气。
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。
B2 noun /nʌn/

Nun

修女
Meaning
a woman who has taken vows in a religious order and lives in a convent
Example
The nun taught at the local Catholic school.
修女在当地的天主教学校授课。
C2 noun /nɑnˈen.tə.ti/

Nonentity

无足轻重的人; 不存在的事物
Meaning
a person of no importance or influence; something that does not exist
Example
He felt like a nonentity in the large corporation.
他在大公司里感觉自己像个无足轻重的人。
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。
B2 verb /ˈnɒmɪneɪt/

nominate

提名
Meaning
to propose someone for a position or award
Example
The committee decided to nominate her for the award.
委员会决定提名她获得奖项。
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。
C1 verb /ˈnjuːtrəlaɪz/

neutralize

中和
Meaning
to make something ineffective or harmless
Example
The medicine helped neutralize the poison in his system.
药物帮助中和了他体内的毒素。
B2 noun /njuːˈtrɪʃ.ən/

nutrition

营养
Meaning
The process of providing or obtaining the food necessary for health and growth.
Example
Good nutrition is vital for a healthy life.
良好的营养对健康生活至关重要。
C2 noun /ˌniːoʊˈlætɪn/

neo-latin

新拉丁语
Meaning
The use of Latin language for scholarly, scientific, and literary purposes after the medieval period.
Example
Many scientific names are derived from Neo-Latin.
许多科学名称来源于新拉丁语。
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。
C2 adjective /ˈneɪtl/

natal

与出生有关的
Meaning
Relating to birth or the place of birth.
Example
She returned to her natal village after many years.
她在许多年后返回了她的出生村庄。
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。
C2 adjective /ˈnɛðər/

nether

下方的
Meaning
situated down or below; lower
Example
They explored the nether regions of the cave.
他们探险了洞穴的下方区域。
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。
C2 adjective /ˈnʌpʃəl/

nuptial

婚礼的
Meaning
Relating to marriage or weddings.
Example
The couple prepared for their nuptial ceremony with great joy.
这对夫妇满怀喜悦地准备他们的婚礼仪式。
C2 adjective /ˈnjuː.ɡə.tɔːr.i/

nugatory

微不足道
Meaning
Of little or no value; worthless or insignificant.
Example
His efforts were nugatory and did not change the outcome.
他的努力微不足道，未能改变结果。
B2 adjective /njuːˈmɛrɪkəl/

numerical

数字的
Meaning
relating to or expressed in numbers
Example
The report provides numerical data on population growth.
报告提供了有关人口增长的数字数据。
C1 noun /ˈnɔː.zi.ə/

Nausea

恶心
Meaning
a feeling of sickness with an inclination to vomit
Example
The motion of the boat caused severe nausea.
船的晃动引起了严重的恶心感。
B1 adverb /ˈniːtli/

Neatly

整齐地; 干净地
Meaning
in a tidy and orderly way; carefully and precisely
Example
She arranged the books neatly on the shelf.
她把书整齐地放在书架上。
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。
A2 noun /ˈnæpkɪn/

napkin

餐巾
Meaning
a piece of cloth or paper used to wipe the mouth and hands while eating
Example
She placed a napkin on her lap before eating.
她在吃饭前把餐巾放在膝盖上。
C1 noun /njʊˈrɑːlədʒi/

neurology

Meaning
The branch of medicine that deals with disorders of the nervous system.
Example
She specializes in neurology and treats patients with brain diseases.
A1 verb /neɪm/

name

命名
Meaning
to give a title or designation to someone or something
Example
They decided to name their baby Sarah.
他们决定把他们的宝宝命名为莎拉。
C2 verb /ˈnuːkliˌeɪt/

nucleate

成核
Meaning
to form into a nucleus or bring together into a central part
Example
The droplets began to nucleate around tiny particles in the air.
水滴开始在空气中的微小颗粒周围形成核。
C1 adjective /nɪˈɡlɛktfʊl/

neglectful

疏忽的
Meaning
Failing to give proper care or attention.
Example
The neglectful parent left the child alone for hours.
疏忽的父母把孩子独自留下几个小时。
C2 noun /ˈnaɪɪˌlɪzəm/

nihilism

虚无主义
Meaning
The rejection of all religious and moral principles, often in the belief that life is meaningless.
Example
The philosopher was criticized for promoting nihilism.
哲学家因提倡虚无主义而受到批评。
C2 noun /ˈnaɪəlɪst/

nihilist

虚无主义者
Meaning
A person who rejects all religious and moral principles, often believing that life is meaningless.
Example
He was called a nihilist for rejecting all social norms.
因为拒绝所有社会规范，他被称为虚无主义者。
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。
C1 adjective /ˈnær.oʊ ˈmaɪn.dɪd/

Narrow-minded

心胸狭窄
Meaning
unwilling to consider new ideas; prejudiced; intolerant; having a limited perspective
Example
His narrow-minded attitude prevented him from accepting new ideas.
他的心胸狭窄使他无法接受新想法。
C1 adjective/noun /ˈnɜːr.tʃɚ.ɪŋ/

nurturing

培养, 促进, 发展
Meaning
The process of caring for and encouraging growth or development.
Example
A nurturing environment helps children thrive.
一个 nurturing 环境帮助孩子们茁壮成长。
B1 noun /ˌnæʃəˈnæləti/

nationality

国籍
Meaning
The status of belonging to a particular nation, either by birth or naturalization.
Example
Her nationality is Canadian, though she was born in France.
她的国籍是加拿大的，尽管她出生在法国。
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。
B1 noun /ˈneɪvi/

Navy

海军
Meaning
the branch of armed forces that conducts military operations at sea
Example
He joined the navy after graduating from college.
他在大学毕业后加入了海军。
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。
C1 adjective /nɑːkˈtɜr.nəl/

Nocturnal

夜行性
Meaning
active at night; happening during the night
Example
Owls are nocturnal animals that hunt at night.
猫头鹰是夜间活动的动物，在晚上捕猎。
C2 noun /ˈneɪdɪər/

nadir

Meaning
The lowest point of a situation or condition.
Example
The company reached its nadir during the financial crisis.
A2 noun (plural) /ˈnuːdəlz/

noodles

面条
Meaning
long, thin strips of dough made from flour, water, or eggs, cooked and eaten as food
Example
She cooked noodles with vegetables for dinner.
她做了蔬菜面条当晚餐。
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 /ˌɛn.biː.esˈpiː/

nbsp

不间断空格
Meaning
a non-breaking space character in HTML used to prevent an automatic line break at its position
Example
Use   in HTML to add a space that won't break into a new line.
在HTML中使用 添加一个不会换行的空格。
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。
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。
B2 noun /ˈnæp.kɪn/

Nap Kin

餐巾
Meaning
a piece of cloth or paper used for wiping the mouth and hands while eating
Example
She placed the napkin on her lap before starting dinner.
她在开始吃晚餐前，把餐巾放在了自己的膝盖上。
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。
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。
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。
B2 noun /ˈnɛtˌwɜːkɪŋ/

networking

建立网络
Meaning
The action of establishing connections and relationships, especially for career or business purposes.
Example
Networking is important for career development.
建立网络对职业发展至关重要。
C1 noun /nɔːrm/

Norm

标准; 常规; 规则; 传统
Meaning
a standard of behavior; what is typical or expected
Example
Working late has become the norm in this company.
加班已成为这家公司的一项常规。
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。
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。
C1 noun /ˈnɔːrməlsi/

normalcy

正常
Meaning
The condition of being normal; a return to usual or expected conditions.
Example
After the flood, the town struggled to regain a sense of normalcy.
洪水过后，城镇努力恢复正常状态。
C2 adjective /nɪˈfɛəriəs/

nefarious

邪恶的，犯罪的，或道德上糟糕的
Meaning
Wicked, criminal, or morally bad.
Example
The police uncovered a nefarious plot to cheat investors.
警方揭露了一个邪恶的阴谋，试图欺骗投资者。
C1 adjective /ˈnɔːʃəs/

nauseous

感觉恶心
Meaning
feeling like you are about to vomit; causing a feeling of sickness
Example
The smell of rotten food made her feel nauseous.
腐烂食物的气味让她感到恶心。
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 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。
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。
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。
B2 verb /ˈnoʊtɪfaɪ/

notify

通知
Meaning
to inform someone officially about something
Example
The manager will notify the staff about the schedule change.
经理将通知员工关于时间表的变化。
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 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。
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。
C2 noun /ˈnʌnəri/

nunnery

修道院
Meaning
A convent or building where nuns live and work.
Example
She decided to join the nunnery to devote her life to spiritual practice.
她决定加入修道院，献身于精神实践。
C1 noun /nɪl/

Nil

零; 什么都没有
Meaning
nothing; zero; no amount
Example
His chances of winning were nil after the scandal.
在丑闻之后，他的获胜机会为零。
C1 noun /niːʃ/

Niche

市场细分, 专门领域, 目标市场
Meaning
A specialized segment of the market for a particular kind of product or service.
Example
Finding the right niche is key to a successful business.
找到正确的细分市场是成功经营的关键。
C1 noun /noʊz rɪŋ/

Nose ring

鼻环
Meaning
a piece of jewelry worn through a piercing in the nose
Example
She got a small gold nose ring for her birthday.
她在生日时收到了一个小巧的金鼻环。
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。
B1 noun /ˈnætʃərəl dɪˈzæstər/

natural disaster

自然灾害
Meaning
a catastrophic event caused by natural processes of the Earth that results in significant damage, destruction, or loss of life
Example
The coastal town was devastated by a natural disaster.
这座沿海城镇被一场自然灾害摧毁了。
A2 adjective /ˈnɔɪ.zi/

Noisy

吵闹
Meaning
making a lot of loud or unpleasant sound; clamorous
Example
The noisy construction work outside made it difficult to concentrate.
外面的吵闹施工工作使得集中精神变得困难。
B2 noun ˈnætʃərəl ˈhæbɪtæt

Natural Habitat

自然栖息地
Meaning
The natural environment where organisms live and fulfill their life needs.
Example
Protecting the natural habitat is crucial for butterflies.
保护自然栖息地对蝴蝶至关重要。
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。
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。
C1 adjective /ˈnɒnʃələnt/

nonchalant

Meaning
Appearing calm, casual, and unconcerned.
Example
He gave a nonchalant shrug and walked away.
A2 pronoun /nʌn/

none

没有人
Meaning
not any; no one; not one
Example
None of the students passed the exam.
没有学生通过考试。
A2 noun /ˈnefjuː/

nephew

侄子
Meaning
the son of one’s brother or sister
Example
My nephew is studying at the university.
我的侄子在大学学习。
C1 noun /ˈnɛktəriːn/

nectarine

油桃 (一种光滑皮肤的桃子品种)
Meaning
A smooth-skinned variety of peach.
Example
She bought a basket of fresh nectarines from the market.
她从市场上买了一篮子新鲜的油桃。
C1 noun /noʊˈteɪʃən/

notation

符号系统
Meaning
A system of symbols or signs used to represent information, especially in mathematics or music.
Example
The teacher explained the notation used in the algebra equations.
老师解释了代数方程中使用的符号系统。
C2 noun /njʊˈrældʒə/

neuralgia

神经痛
Meaning
intense, often intermittent pain along a nerve pathway
Example
The patient suffers from neuralgia in her face.
病人面部患有神经痛。
C1 noun /ˈnɜr.tʃər/

Nurture

培养
Meaning
the process of caring for and encouraging growth or development
Example
Good parenting involves both nature and nurture.
良好的育儿涉及自然和培养两个方面。
C2 noun /ˈnɒn.ɪʤ/

Nonage

未成年时期
Meaning
the period of being under the legal age of majority; youth or immaturity
Example
During his nonage, all legal decisions were made by his guardian.
在他未成年时期，所有法律决定都由他的监护人作出。
C1 adjective /ˌnjʊə.rəˈlɒdʒ.ɪ.kəl/

neurological

神经学的
Meaning
Relating to the anatomy, functions, and organic disorders of nerves and the nervous system.
Example
Meditation has positive neurological effects on mental health.
冥想对心理健康有积极的神经学影响。
C1 adjective /ˈnæs.ənt/

nascent

初生的
Meaning
Emerging, developing, or in the early stages of formation
Example
The nascent technology is revolutionizing industries.
初生的技术正在革命化各行各业。
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 verb /nɪp/

nip

轻咬
Meaning
to pinch or bite lightly; to move quickly
Example
The cold wind nipped at my face.
冷风轻咬着我的脸。
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。
B2 noun /ˌnɔːrθˈiːst/

northeast

东北
Meaning
the direction between north and east; a region or area located in that direction.
Example
The storm is moving toward the northeast.
暴风雨正朝东北方向移动。
A2 noun /ˈnek.ləs/

Necklace

项链
Meaning
a piece of jewelry that is worn around the neck
Example
She wore a beautiful diamond necklace to the party.
她在派对上戴着一条漂亮的钻石项链。
C1 noun /ˈnʌt.meg/

Nut meg

肉豆蔻
Meaning
a spice made from the seed of the fruit of an evergreen tree, used in cooking and baking
Example
The recipe called for a teaspoon of ground nutmeg to flavor the custard.
食谱中要求用一茶匙磨碎的肉豆蔻来调味蛋奶冻。
C1 verb /ˈnɪbəl/

nibble

啃
Meaning
to take small bites of food
Example
The rabbit nibbled on a carrot.
兔子咬着胡萝卜。
C2 noun /ˈnjuː.trɪ.mənt/

nutriment

营养物
Meaning
Something that nourishes; sustenance or food.
Example
The soil provides nutriment to the plants.
土壤为植物提供养分。
B2 adjective /nuːd/

nude

裸体
Meaning
Wearing no clothes; naked.
Example
The artist painted a nude model.
艺术家画了一位裸体模特。
C2 noun /ˈnɛkrəˌmænsər/

necromancer

Meaning
a person who practices necromancy; a wizard or magician who claims to communicate with the dead
Example
The villagers feared the old necromancer who lived at the edge of the forest.
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。
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。
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。
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。
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 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 /naɪt ˈdʒæz.mɪn/

Night-jesmine

夜茉莉
Meaning
a fragrant flowering tree that blooms at night with small white flowers
Example
The night-jasmine tree blooms only after sunset with its tiny white flowers.
夜茉莉树只在日落后开出它的小白花。
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
A2 adjective /ˈnæʃənəl/

national

国家的
Meaning
relating to a nation, especially its culture, language, or government
Example
The national anthem was played at the ceremony.
国歌在仪式上播放。
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。
B2 adjective /njuːˈtrɪʃ.əs/

Nutritious

有营养的
Meaning
containing substances that help the body grow and stay healthy; nourishing
Example
Eating nutritious food helps maintain good health.
吃有营养的食物有助于保持身体健康。
B2 noun /nɪˌɡoʊ.siˈeɪ.ʃən/

Negotiation

旨在达成协议的讨论; 谈判
Meaning
discussion aimed at reaching an agreement; bargaining
Example
The negotiation between the two companies lasted for weeks.
两家公司之间的谈判持续了好几个星期。
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。
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。
B2 adverb /ˈnæʃənəli/

nationally

在全国范围内
Meaning
at the level of a whole nation; in a way that involves or affects an entire country
Example
The policy was implemented nationally to ensure equal benefits for all citizens.
该政策在全国范围内实施，以确保所有公民享有平等的福利。
A2 adverb /ˈnɪərbaɪ/

Near-by

附近; 在附近
Meaning
close to; not far away; in the neighborhood
Example
There is a grocery store nearby.
附近有一家杂货店。
C2 adjective /ˈnɛtlˌsʌm/

nettlesome

令人烦恼的
Meaning
Causing irritation, annoyance, or difficulty.
Example
The nettlesome rules frustrated the workers.
令人烦恼的规则让工人们感到沮丧。
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。
A1 adjective /nɛkst/

next

下一个
Meaning
immediately following in time, order, or place
Example
The next train leaves at 9:00 AM.
下一班火车将在上午9:00出发。
B2 adjective /nəˈtɔːriəs/

notorious

臭名昭著
Meaning
Famous or well-known for something bad or undesirable
Example
The area is notorious for its high crime rate.
该地区因其高犯罪率而臭名昭著。
A1 noun /noʊˈvɛmbər/

november

十一月
Meaning
the eleventh month of the year in the Gregorian calendar
Example
November is often cool and quiet before winter begins.
十一月通常在冬天开始前比较凉爽而安静。
C2 noun, adjective /nɒn ˈkɒmbətənt/

non-combatant

非战斗人员
Meaning
a person not engaged in fighting during a war, such as civilians or medical staff
Example
The Red Cross workers were treated as non-combatants in the conflict.
红十字会的工作人员在冲突中被视为非战斗人员。
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 /næˈteɪʃən/

natation

游泳
Meaning
The act or sport of swimming.
Example
She took lessons in natation to improve her swimming skills.
她参加了游泳课程，以提高她的游泳技巧。
C2 adjective /njuːˈtoʊniən/

newtonian

与牛顿定律相关
Meaning
relating to the laws of motion and gravitation formulated by Sir Isaac Newton
Example
The scientist explained the Newtonian laws of motion.
科学家解释了牛顿的运动定律。