essential
/ɪˈsɛn.ʃəl/ 形容词 B1中文： 必要、不可缺的、必备、要素
- Necessary.
- Very important; of high importance. · I see it as essential that there should be somewhere to park.
- Necessary for survival but not synthesized by the organism, thus needing to be ingested.
- Being in the basic form; showing its essence. · Don’t mind him being grumpy. That’s the essential Fred.
- Really existing; existent.
- 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.
- Idiopathic. · essential blepharospasm
- Having the nature of essence; not physical.
来自图书馆
In the train the agent murdered him, took the more essential papers, and threw his body from the carriage.
I began my operations at Gloucester Road Station, where a very helpful official walked with me along the track and allowed me to satisfy myself not only that the back-stair windows of Caulfield Gardens open on the line but the even more essential fact that, owing to the intersection of one of the larger railways, the Underground trains are frequently held motionless for some minutes at that very spot.”
“I have jotted down the more essential ones upon this sheet of paper, together with a few addresses which you will find of service.
The plans, which are exceedingly intricate, comprising some thirty separate patents, each essential to the working of the whole, are kept in an elaborate safe in a confidential office adjoining the arsenal, with burglar-proof doors and windows.
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