neglectful
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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。
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。
C2 noun /nɪˈkrɒlədʒi/

necrology

讣告
Meaning
An obituary notice or a list of people who have recently died.
Example
The newspaper published a necrology of notable figures who passed away that year.
报纸发布了该年已故知名人物的讣告。
C1 preposition/adverb/conjunction /ˌnɒtwɪθˈstændɪŋ/

notwithstanding

尽管如此
Meaning
In spite of; despite
Example
Notwithstanding the challenges, the team completed the project.
尽管面临挑战，团队完成了项目。
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 /ˈnʌmbər/

number

号码
Meaning
a mathematical value used to count, measure, or label
Example
She gave me her phone number.
她给了我她的电话号码。
C1 adjective + noun njuˈtrɪʃəs krɒps

nutritious crops

营养丰富的作物
Meaning
Plants or vegetables that are rich in nutrients and beneficial for health
Example
Winter vegetables are considered nutritious crops.
冬季蔬菜被认为是营养丰富的作物。
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。
C2 noun /ˌnɒvəˈlɛt/

novellette

短篇小说
Meaning
A short novel or long short story.
Example
The author published a novellette as a preview of her upcoming series.
作者作为她即将发布的系列的预览，发布了一个短篇小说。
A2 adverb /ˈnoʊwɛr/

Nowhere

哪里也没有
Meaning
not anywhere; in no place
Example
I searched everywhere but the keys were nowhere to be found.
我到处找，但钥匙哪里也找不到。
C2 noun /nɪt/

nit

虱子卵
Meaning
The egg or young form of a louse or other parasitic insect.
Example
The teacher noticed nits in the child’s hair.
老师发现了孩子头发里的虱子卵。
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。
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。
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 /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 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。
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。
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。
B2 adjective /ˈnoʊtəbl/

notable

显著
Meaning
worthy of attention or notice; remarkable
Example
She made a notable contribution to the project.
她对这个项目做出了显著的贡献。
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。
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 /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。
A2 adjective /niːt/

Neat

干净整洁; 井然有序; 精心制作
Meaning
clean and tidy; well-organized; carefully done
Example
Her room is always neat and organized.
她的房间总是整洁有序。
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.
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。
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。
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。
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。
C1 noun /nɑːrˈkɒtɪk/

narcotic

麻醉品
Meaning
A drug that dulls the senses and relieves pain, often causing sleep and sometimes addiction.
Example
The police seized a large amount of narcotic substances.
警察查获了一大批麻醉品。
A1 verb /niːd/

need

需要
Meaning
to require something; to be in want of
Example
I need help with my homework.
我需要我的作业的帮助。
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 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。
C1 noun, adjective /ˌnɒn ˈrɛzɪdənt/

non-resident

非居民
Meaning
a person who does not live in a particular country or place permanently
Example
Non-resident students often pay higher tuition fees.
非居民学生通常支付更高的学费。
A1 adjective /naɪs/

Nice

愉快的; 漂亮的; 满意的; 吸引人的
Meaning
pleasant; agreeable; satisfactory; good; attractive
Example
She wore a nice dress to the party.
她穿着一件漂亮的裙子去参加派对。
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。
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。
C1 adjective /ˈniːd.ləs/

Needless

不必要的
Meaning
unnecessary; not required; without purpose
Example
The argument was needless and could have been avoided.
这场争论是多余的，本来可以避免。
B2 adjective /ˈneɪvəl/

naval

海军的
Meaning
relating to a country's navy or military ships
Example
The country invested heavily in naval defense.
该国在海军防御方面进行了大量投资。
C2 adjective /ˌnɒndɪˈskrɪpt/

nondescript

无特色
Meaning
Lacking distinctive or interesting features; dull and unremarkable.
Example
He lives in a nondescript apartment building on the edge of town.
他住在市区边缘的一座无特色的公寓楼里。
C2 noun /ˌnɛɡlɪˈʒeɪ/

negligee

轻薄丝绸睡衣
Meaning
A woman's light dressing gown, often made of thin or silky material.
Example
She wore a silk negligee before going to bed.
她在睡觉前穿上了丝绸睡衣。
C2 noun /niˈɒlədʒi/

neology

使用新词或研究其起源
Meaning
The use of new words or the study of their origin.
Example
The professor specialized in neology, studying the creation of modern slang.
教授专注于新词学，研究现代俚语的创造。
B1 adverb /ˌnesəˈserəli/

Necessarily

必然地；不可避免地；
Meaning
as a necessary result; inevitably; by logical consequence
Example
Rich people are not necessarily happy.
有钱人不一定幸福。
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。
C1 adjective /ˌnɒn ɪɡˈzɪstənt/

non-existent

不存在
Meaning
not real or not present; lacking existence
Example
The supposed evidence turned out to be non-existent.
假定的证据证明是不存在的。
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 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 /nuːs/

Noose

套索
Meaning
a loop with a running knot used for hanging; a trap or snare
Example
The cowboy made a noose to catch the wild horse.
牛仔做了一个套索来抓住野马。
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.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 /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。
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。
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。
B1 noun /nest/

Nest

鸟巢
Meaning
a structure built by birds to lay eggs and shelter their young
Example
The bird built a nest in the tree.
鸟儿在树上建了一个鸟巢。
B2 verb /ˈnæv.ɪ.ɡeɪt/

navigate

导航
Meaning
To plan and direct the route or course of a ship, aircraft, or other form of transport.
Example
The GPS helps navigate complex routes.
GPS帮助导航复杂的路线。
C1 adjective /ˈnɪmbəl/

nimble

灵活
Meaning
Quick and light in movement or thought.
Example
The dancer’s nimble steps impressed the audience.
舞者灵活的步伐给观众留下了深刻的印象。
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。
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。
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。
A2 noun /ˈnoʊtbʊk/

notebook

Meaning
a small book with blank or ruled pages for writing notes; also a portable computer
Example
She opened her notebook to jot down some ideas.
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 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。
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。
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 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。
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。
B2 noun /ˈnæreɪtər/

narrator

叙述者
Meaning
A person who tells the story in a book, play, or film.
Example
The narrator guided the audience through the complex plot.
叙述者引导观众穿越复杂的情节。
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。
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。
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 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。
C1 noun /ˈneɪ.vəl/

Navel

肚脐
Meaning
the small hollow in the center of the stomach where the umbilical cord was attached
Example
The baby's navel cord fell off after a week.
婴儿的脐带一周后掉了。
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 /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。
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 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。
A1 noun /naɪn/

nine

九
Meaning
the number that is one more than eight
Example
She has nine books in her collection.
她的收藏里有九本书。
C1 noun /ˈnoʊ.və/

Nova

新星
Meaning
a star that suddenly increases greatly in brightness
Example
Astronomers discovered a new nova in the constellation.
天文学家在星座中发现了一个新的诺瓦。
C2 adjective /ˈnjuː.mər.ə.bəl/

Numerable

可计数的; 数得出的
Meaning
capable of being counted; countable
Example
The stars in the sky are not numerable.
天空中的星星是不可计数的。
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 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。
B1 noun /ˈniː.dəl/

Needle

针
Meaning
a thin, pointed metal instrument used for sewing
Example
She threaded the needle to sew the button.
她将线穿过针眼，以缝扣子。
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。
C2 noun /ˌnjuːməˈreɪʃən/

numeration

计数
Meaning
the action or process of counting or assigning numbers
Example
The teacher explained the basics of numeration to the students.
老师向学生解释了计数的基础知识。
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。
B2 verb /nɒd/

nod

点头
Meaning
to move one's head down and up to show agreement or acknowledgment
Example
She nodded in agreement with the proposal.
她点头表示同意该提议。
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。
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。
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。
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。
A1 adjective /njuː/

new

新的
Meaning
recently made, discovered, or introduced; not existing before
Example
He bought a new car yesterday.
他昨天买了一辆新车。
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 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。
C1 verb /ˈnɔːrməlaɪz/

normalize

正常化
Meaning
to bring something back to a normal or standard condition; to make something conform to a standard
Example
The government took steps to normalize relations with neighboring countries.
政府采取措施使与邻国的关系正常化。
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 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。
A2 adjective /ˈnɔːti/

naughty

顽皮
Meaning
Disobedient or mischievous, often in a playful or mildly bad way.
Example
The naughty child drew on the walls with crayons.
顽皮的孩子用蜡笔在墙上画画。
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。
B2 noun /ˈnuː.kʌm.ər/

New-comer

新来者
Meaning
a person who has recently arrived in a place or joined a group
Example
The newcomer was warmly welcomed by the team.
新来者受到了团队的热烈欢迎。
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 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.
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。
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。
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。
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 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。
C2 adjective /ˈnjuːbaɪl/

nubile

年轻的女孩
Meaning
of a young woman, sexually mature and suitable for marriage
Example
The village was celebrating the festival with its nubile maidens dancing.
村庄正在庆祝节日，跳舞的是年轻的女孩。
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。
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。
C1 adjective /ˈnjʊrəl/

neural

Meaning
Relating to nerves or the nervous system.
Example
Scientists study neural connections in the brain.
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。
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。
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。
B1 noun /neɪl/

Nail

钉子
Meaning
a small metal spike with a broadened flat head; part of finger or toe
Example
He hammered the nail into the wooden board.
他把钉子钉进了木板。
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。
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。
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。
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。
B1 noun /nɛt/

net

网
Meaning
a piece of material made of threads or ropes woven together, used to catch or hold things
Example
The fisherman cast his net into the sea.
渔夫把他的网投进了海里。
B1 adjective /ˈnɔːðərn/

northern

北方的
Meaning
relating to the north or situated in the north
Example
The northern part of the country is known for its cold climate.
该国的北部因其寒冷的气候而闻名。
C2 adjective /ˌnɒnkəˈmɪtl̩/

noncommittal

Meaning
Not expressing or showing a clear opinion, decision, or commitment.
Example
She gave a noncommittal reply when asked about her future plans.
C1 adverb /ˈnɔːθwədz/

Northwards

向北
Meaning
towards the north; in a northerly direction
Example
The birds migrate northwards in spring.
鸟类在春天向北迁徙。