她工作并非出于经济上的必要性。

There's no financial ___necessity for her to work.

缝纫是我出于需要而做的事情，不是为了乐趣。

Sewing is something I do out of ___necessity, not for pleasure.

因此，最重要的教训是认识到教育的必要性以及为之奋斗的过程。

Therefore, the most important lesson to learn is to acknowledge the ___necessity of education and the struggle to make it happen.