nation / country / state Native American naughty / mischievous / rowdy near / nearly neat / tidy / trim necessary / essential / vital neither / none nervous / anxious no / not no way noise / racket / clatter numbers numerous / countless / innumerable

necessary / essential / vital 　 　 A. necessary는 필요한을 나타내는 일반적인 단어이다. 1. Is a bell necessary on a bicycle? 2. A good education is necessary for a good job. 3. Is it really necessary to fill out these forms? 　 　 B. essential은 완전히 필요한 즉 필수적인 이란 의미이다. 1. A quiet office is essential for my work. 2. Good brakes are essential to safe driving. 3. Good food and enough rest are essential to good health. 　 　 C. vital의 기본적인 의미는 생명유지에 필요한으로부터 절대로 필요한, 필수 불가결한 의 의미가 된다. 1. Doctors performed the vital operation just in time. 2. The heart is a vital organ. 3. He had lost a vital document. 4. Good government is vital to the welfare of a community. 5. It is vital that you tell no one of our plans.

A good education is necessary for a good job. 　 A quiet office is essential for my work. 　 The heart is a vital organ.

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