1. 戰(zhàn)爭帶來的必然結(jié)果就是生產(chǎn)力下降。
   The necessary outcome of a war is a fall in production.
2. 作出決策乃當務之急，此事必然地落在他身上。
   The necessity for making decisions devolves on him.
3. 批評家是必然的 * ，而批評是 * 的必然。
   A critic is a necessary evil, and criticism is an evil necessity.
4. 模態(tài)邏輯命題的限制條件，建立在其內(nèi)容的肯定或否定其可能性，不可能性，偶然性或必然性基礎(chǔ)之上
   The classification of propositions on the basis of whether they assert or deny the possibility, impossibility, contingency, or necessity of their content.
5. 工資一高物價就高，這是不是合乎邏輯的必然規(guī)律？
   Is it a logical necessity that higher wages will lead to higher prices?

必的英語翻譯：

然的英語翻譯：