Advertising is crucial to successful book selling.
The headteacher has played a crucial role in transforming this school.
indispensable if someone or something is indispensable, you cannot do something without them and they are extremely useful
She soon made herself indispensable in the office.
Mobile phones have become an indispensable part of our daily lives.
something is a must informal used when recommending something to someone and saying that they should definitely have it, do it, visit it etc
Virus checkers are a must for computer users concerned with security.
If you’re in Austria, a visit to Salzburg is a must.
nCOLLOCATIONS – Meaning 2: the essential part, quality, or feature of something is the most basic one
nouns
the essential element
Hard work is the essential element of his success.
an essential ingredient
Most people believe that love is an essential ingredient in a marriage.
an essential difference
The essential difference between the two boats lies in the design of the hull.
the essential point
The essential point is that all children should have an equal opportunity to study.
an essential feature
A free press is an essential feature of a democracy.
an essential component
Controlling inflation is an essential component of the government’s economic strategy.
the essential nature of something
The essential nature of stem cells is that they are the source of all other cells in the body.
Examples from the Corpus
essential• If you're going hiking in the mountains, a decentpair of boots is essential.• If you're going walking in the mountains, strong boots are essential.• A second essentialcomponent in all such programmes is winning over local people.• What is the essential difference between these two books?• The essential difference between this class and other French classes is that this is intended for business people.• Quickpersonal decisions are essential for success in an entrepreneurial business.• Calcium is essential for the development of healthyteeth and bones.• This follow-up is essential in wardteaching, but poorfacilities often make it difficult to achieve without interruption.• But Silber and the others have identified one essentialingredient: abhorrence for the status quo.• The structure of levels was an essential part of the National Curriculum from its inception.• The touristindustry is now acknowledged as an essential part of the Spanisheconomy.• The essential point is that you both need to treat each other with much more respect.• They consider that an exchange of information on this problem is an essentialprerequisite.• It is essential that the oil is checked every 10,000 km.• It's essential that you wear protective clothing in this area.• Cleaners are the most essential, the most unseen, apparently the least powerful of modern capitalism's new working class.• The layer of fat on the baby seal's body is essential to its survival.• It is essential to read any document carefully before you sign it.• In undermining the notion of essentialtruth, however, Nietzsche also undermines the notion of an essential self.
essential difference• This is the essential difference between anthropology and Darwinism.• This has led to the argument that there is no essential difference between debt and tax finance.• What then is the essential difference between direct and traditionalinsurance?• The essential difference between free email and its paid for counterpart is that the email service is provided through a Webinterface.• The essential difference between single-step selection and cumulative selection is this.• And in that there lies an essential difference between the painters and the poets here.• The market-based economies and privateownership in Western democracies make an essential difference in the scope and application of the centralization concepts.• Whether they made an essential difference is another story, but I tend to think that everything counts.
essential2 noun
1[countableC usually plural]IMPORTANT something that is necessary to do something or in a particular situation 必需品;必不可少的东西SYN necessity
She packed a few essentials.
她把几件生活必需品装进箱子。
We only had the bare essentials (=the most necessary things).
我们只有几样最要紧的东西。
2the essentials[plural]MAIN the basic and most important information or facts about a particular subject 要点,要素
the essentials of
We have no reason to doubt the essentials of the girl’s story.
essential• She had packed two cases with clothes, towels and essentials.• Her bag was light now, only packed with the bareessentials.• In any conference or special event there are certainessentials.• Leginfantry has to carry every item they will need, and that means only the barest of essentials.• The budget provides money for food, transportation, and other essentials.• But also, the principle of parsimony should be used to keep the research down to essentials.• Now it was down to essentials.
bare essentials• Peter Stansill provided the bare essentials, and Williams, hurriedly schooled in the importance of deadlines, learnt on the job.• Yet Gloria herself never seemed to hold on to more than the bare essentials that they had in their two paper carriers.• Now, she was stripped down to the bare essentials of her person, trying to deal with her knowledge.• Reduced to the bare essentials, the divergent internalperformancepatterns looked like the figure on page 264.• Despite a lifestyle stripped to the bare essentials, they are also some of the most visually arresting animals in the desert.• Her bag was light now, only packed with the bare essentials.• Learn how to distil large quantities of information into their bare essentials. 7.• As its title suggests, Functionalism tends to reduce a problem, and its solution, to bare essentials.