necessary

🇬🇧/ˈnesəsəri/ 🇺🇸/ˈnesəseri/📚 985 110 4中考高考
Something that is necessary is needed in order for something else to happen. 必要的

adjective [原级]必要的,必需的;必然的,不可避免的;迫不得已的,非自愿的

I kept the engine running because it might be necessary to leave fast.
我让发动机一直开着,因为可能需要快速离开。

noun [具体名词](生活)必需品;<英,非正式>必要的事(the necessary);<英,非正式>足够的钱(the necessary)

If necessary I can come at once.
如果有必要,我可以马上来。

necessary 出现在下面的课文中
Lesson 61 Trouble with the Hubble
Lesson 40 Who's who
Lesson 42 Modern cavemen
Lesson 60 Too early and too late
Lesson21 Williams S. Hart and the early 'Western' film
Lesson 26 The past life of the earth
单词造句:
网友用“Necessary”造句精选
Make the necessary arrangements. 做必要的一些安排。
Scientific work is differentiated from art by its necessary connection with the idea of progress. 科学工作不同于艺术在于它与进步的概念有必然联系。
Sometimes it is necessary to say no. 有时候说“不”是必要的。
I can take the car if necessary. 如果必要的话,我可以乘汽车去。