必要的,必需的 essential for a purpose; that cannot be done without or avoided
必然的,不可避免的 that must be; inevitable
英英释义
Noun:
anything indispensable;
"food and shelter are necessities of life"
"the essentials of the good life"
"allow farmers to buy their requirements under favorable conditions"
"a place where the requisites of water fuel and fodder can be obtained"
Adjective:
absolutely essential
unavoidably determined by prior circumstances;
"the necessary consequences of one's actions"
necessary的用法和样例:
例句
用作形容词 (adj.)
She will make necessary arrangements. 她会作好必要的准备。
If necessary, please warehouse the goods. 如有必要,请将该货存入仓库。
The necessary outcome of a war is a fall in production. 战争带来的必然结果就是生产力下降。