这未必是他错了的证明。

This is not necessarily proof that he is wrong.

《柯林斯英汉双解大词典》

生气未必是对待此类事件最有用或最适合的反应。

Anger is not necessarily the most useful or acceptable reaction to such events.

《柯林斯英汉双解大词典》

和大家认为的相反，饭后立即散步对健康未必有好处。

Contrary to common belief, taking a walk immediately after a meal doesn't necessarily do good to our health.

youdao

You are able to do things here" "that you might not necessarily be able to do elsewhere."

你在这里能做的事情“,“在别的地方你就未必能做了“

普林斯顿公开课 - 人性课程节选

Now, there's something you do that's so obvious you probably don't even know you're doing it.

现在,你做了件你自己都未必意识到的,超级无聊的事情

耶鲁公开课 - 心理学导论课程节选

By the way, the winner's never picked up their winnings for that, so they still can.

顺便说下,赢家的奖金未必是那么多,但也可能就是那么多

耶鲁公开课 - 博弈论课程节选