be not necessarily so

基本解释

Foie-gras production can be a form of abuse but is not necessarily so, for an enlarged liver can still be healthy.
生产鹅肝可以是一种虐待行为，但也可以不是，因为超大肝脏仍然可以是健康的。
On the other hand, a query for a clerk might not necessarily be weighted as high, so that query might have to make do with the indexes that already exist.
反之，职员的查询也许就没有必要看得那么重，所以也许应该利用现有索引来执行查询。
It would not necessarily be so virtuous for consumers worldwide, however; rising wages will mean rising prices for the goods produced if manufacturers pass on their higher costs to customers.
然而，对全球消费者来说，这却未必是一件好事。加薪意味着如果制造商将成本升高的压力传递给消费者的话，商品价格将随之增加。

But you know, sometimes what seems to be the virtuous may not necessarily be, so that would be an example.
但是现在你们知道了,有时候看起来低脂的食物并不一定低脂,这是个很好的例子
耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选
These kinds of fats are not necessarily bad, and so things like olive oil in the diet tends to be protective and may explain some regional variations in rates of heart disease.
这些脂肪就不一定有害,所以饮食中橄榄油之类的对身体是有益的,这也解释了地域间心脏病发病率的差异
耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选
So, we just want to appreciate that what we'll be using in this class is, in fact, the solutions to the Schrodinger equation, and just so you can be fully thankful for not having to necessarily solve these as we jump into the solutions and just knowing that they're out there and you'll get to solve it at some point, hopefully, in your careers.
所以，我们仅仅想要鉴别,将会在这门课中用到的，事实上就是薛定谔方程的解，而且你们可以非常欣慰,因为你们没有必要去,解这些方程而是直接用它们的解,并且知道这些解出自那里,希望你们在学习生涯中。
麻省理工公开课 - 化学原理课程节选

Foie-gras production can be a form of abuse but is not necessarily so, for an enlarged liver can still be healthy.
ECONOMIST: Why some duck livers are delicious, and others nasty