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
英語翻譯
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\\\"
造句
用作形容詞(adj.)
She will make necessary arrangements. 她會作好必要的準備。
If necessary, please warehouse the goods. 如有必要，請將該貨存入倉庫。
The necessary outcome of a war is a fall in production. 戰爭帶來的必然結果就是生產力下降。
常用短語
用作形容詞(adj.)
a necessary evil
不得不認可的不合意甚至有害的事物 thing that is undesirable and possibly harmful but must be accepted for practical reasons