bản chất thực chất cốt yếu yếu tố cần thiết 
essential like: cần thiết → →
unentbehrlich ☊ 
rất cần thiết, không thể thiếu ☊ 
必不可少的 ☊ bì bù kě shǎo de unentbehrlich ☊ rất cần thiết, không thể thiếu ☊ ☊ Ich könnte etwas Nützliches besuchen. ☊ Anh muốn đi đến những nơi cần thiết. ☊ (Lektion 17, Nr. 189) Ich hoffe, der Mechaniker wird sich bis morgen das Auto anschauen und alle nötigen Teile besorgen. ☊ Anh hy vọng, tới sáng mai người thợ cơ khí sẽ xem xét xe và chăm sóc tất cả các bộ phận cần thiết. ☊ (Lektion 68, Nr. 977) The building plans include much needed new office accommodation. ☊ accommodation ☊
acknowledge sth: She refuses to acknowledge the need for reform. ☊ acknowledge ☊
How long will it take to acquire the necessary skills? ☊ acquire ☊
agree (with sb) (about/on sth): He agreed with them about the need for change. ☊ agree ☊
Teamwork is required in order to achieve these aims. ☊ aim ☊
Children should be disciplined when the need arises (= when it is necessary). ☊ arise ☊
combine sth: We are still looking for someone who combines all the necessary qualities. ☊ combine ☊
I do not wish to complicate the task more than is necessary. ☊ complicate ☊
it is concluded that...: It was concluded that the level of change necessary would be low. ☊ conclude ☊
a necessary condition for economic growth ☊ condition ☊
it is considered that...: It is considered that the proposed development would create much-needed jobs. ☊ consider ☊
We need to design a new syllabus for the third year. ☊ design ☊
Early booking is essential, as space is limited. ☊ early ☊
She writes with a great economy of words (= using only the necessary words). ☊ economy ☊
The museum is closed while essential repairs are being carried out. ☊ essential ☊
This book is essential reading for all nature lovers. ☊ essential ☊
essential to sth: Money is not essential to happiness. ☊ essential ☊
essential for sth: Experience is essential for this job. ☊ essential ☊
it is essential to do sth: It is essential to keep the two groups separate ☊ essential ☊
it is essential that...: It is essential that you have some experience. ☊ essential ☊
I only had time to pack the bare essentials (= the most necessary things). ☊ essential ☊
The studio had all the essentials like heating and running water. ☊ essential ☊
the essentials of English grammar ☊ essential ☊
No expense was spared (= they spent as much money as was needed) to make the party a success. ☊ expense ☊
You could be exposing yourself to unnecessary risks when driving alone. ☊ expose ☊
The project will only go ahead if they can raise the necessary finance. ☊ finance ☊
If necessary I can come at once. ☊ if ☊
mean sb for sth/sb: I was never meant for the army (= did not have the qualities needed to become a soldier). ☊ mean ☊
'We're going to lose.' 'Not necessarily.' ☊ not necessarily ☊
It may be necessary to buy a new one. ☊ necessary ☊
Only use your car when absolutely necessary. ☊ necessary ☊
I'll make the necessary arrangements. ☊ necessary ☊
Changes can easily be made where necessary. ☊ necessary ☊
She has the qualities necessary to be a successful teacher. ☊ necessary ☊
This is a necessary consequence of progress. ☊ necessary ☊
need (not) have done sth: You needn't have worried (= it was not necessary for you to worry, but you did) —it all turned out fine. ☊ need ☊
We will contact you again if the need arises. ☊ need ☊
He helped me in my hour of need. ☊ need ☊
A basic sense of rhythm and pitch is essential in a music teacher. ☊ pitch ☊
The possession of a passport is essential for foreign travel. ☊ possession ☊
Careful preparation for the exam is essential. ☊ preparation ☊
No previous experience is necessary for this job. ☊ previous ☊
Although not essential, some prior knowledge of statistics is desirable. ☊ prior ☊
Previous teaching experience is a necessary qualification for this job. ☊ qualification ☊
recognize sth: They recognized the need to take the problem seriously. ☊ recognize ☊
a scare story (= a news report that spreads more anxiety or fear about sth than is necessary) ☊ scare ☊
separation (between A and B): the need for a clear separation between Church and State ☊ separation ☊
Give the necessary information but keep it simple. ☊ simple ☊
succeed in sth: She doesn't have the ruthlessness required to succeed in business. ☊ succeed ☊
unnecessary expense ☊ unnecessary ☊
They were found guilty of causing unnecessary suffering to animals. ☊ unnecessary ☊
All this fuss is totally unnecessary. ☊ unnecessary ☊
That last comment was a little unnecessary, wasn't it? ☊ unnecessary ☊
What is needed is a frank exchange of views. ☊ view ☊
vital (for sth): the vitamins that are vital for health ☊ vital ☊
I hate unnecessary waste. ☊ waste ☊
Take whatever action is needed. ☊ whatever ☊