Word · CEFR B1 · Frequency #1155
essential
必要的；非常重要的；必不可少的
Extremely important and necessary.
- 1.
Necessary.
必需的
- 2.
Very important; of high importance.
非常重要的
- 3.
absolutely necessary; vitally necessary
绝对必要的；极其重要的
- 4.
Necessary for survival but not synthesized by the organism, thus needing to be ingested.
生存必需但无法自体合成,需摄入的
- 5.
basic and fundamental
基本的和根本的
- 6.
Being in the basic form; showing its essence.
基本形式的,体现本质的
- 7.
Really existing; existent.
确实存在的
- 8.
Such that each complementary region is irreducible, the boundary of each complementary region is incompressible by disks and monogons in the complementary region, and no leaf is a sphere or a torus bounding a solid torus in the manifold.
每个补区域不可约,补区域边界关于补区域不可压缩盘和单边形,且无叶面为球面或环面边界该环面在流形中为实心环
- 9.
Idiopathic.
特发性的
- 10.
Having the nature of essence; not physical.
本质的；非物质的
基本的；根本的；必需的（指营养素等）；本质的；体现本质的；精华的；特发的；原发性的；真实的；实际存在的
In use
Water is essential for human survival.
It is essential that you arrive on time for the interview.
Good communication skills are essential in this job.
essential tools and materials
funds essential to the completion of the project
the essential feature
it is essential (that) + clause
that可以省略。
It is essential that you arrive on time.
你必须准时到达，这是绝对必要的。
be essential for/to + noun/gerund
Connections
Collocations
- essential for
- 对…绝对必要
- Water is essential for life.水对生命是绝对必要的。
- essential to
- 对…至关重要
- Good communication is essential to a healthy relationship.良好的沟通对健康的关系至关重要。
- essential part
- 重要组成部分
- Regular exercise is an essential part of a healthy lifestyle.定期锻炼是健康生活方式的重要组成部分。
- essential role
- 关键作用
- Education plays an essential role in personal development.教育在个人发展中起着关键作用。
- essential services
- 基本服务
- During the pandemic, essential services like healthcare remained open.疫情期间，医疗保健等基本服务保持开放。
- essential oil
Learner notes
Memory Tip
联想 essence（本质），essential 即“本质的”，本质的东西当然是“绝对必要的”。
Context & Register
register: neutral; typical contexts: general conversation, formal writing, instructional materials; note: 通常表示绝对必要，语气中性，适用于多数场合
Pronunciation & Spelling
All listed words share the ending /ʃəl/ but have different stressed vowels, so they do not rhyme with essential (/ɪˈsɛn.ʃəl/).
High-value vocabulary
该词属于 Oxford 核心词汇，值得优先掌握常见搭配和句型。
Usage priority
Collins 词频等级为 4，建议结合例句记忆，而不是只背中文释义。
Learn the forms together
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.