必要条件

1. 管理部门的同意就是所有雇用合同的必要条件。
   Agreement by the management is a sine qua non of all employment contract.
2. 爱玛总可以这样回首往事，她周围的人全都门当户对地婚配成亲，这才是他们真正幸福的必要条件。
   She could always reflect that all parties concerned had married according to their stations, a prerequisite for their true happiness.
3. 格雷特已具备成为一名大演员的必要条件。
   Greta has got what it takes to become a great actress.

必要的英语翻译：

条件的英语翻译：