It can be frivolous, but it doesn't have to be.

快乐可能是无意义的，但也不一定如此。

'But you needn't be a missionary! ' I cried.

“可你不一定教士啊！”我叫道。

Or just emergencies, not necessarily angry ones.

或者只是紧急情况，不一定是愤怒的。

But not everyone's circadian rhythm is the same.

但每个人的昼夜节律不一定是一样的。

Provincial officials dispute this and say the battle is continuing.

但多名省政府官员驳斥了该说法，并表示鹿死谁手还不一定。

" Necessary? No, I should not say that it is necessary to kill."

“一定？不，我认为不一定要杀人。”

No prior musical experience is necessary.

不一定需要有音乐验。

" There is a kind of false precision being hawked by people claiming they are doing ancestry testing, " says Trey Duster, a New York University sociologist.

纽约州立大学的社会学家特洛伊·达斯特说，“那些声称可以进行血统检测的人，他们兜售的测试有一定的不准确性。”

It is imperative that you learn the truth, not necessarily the facts.

你必须了解真相，而不一定是事实。

We have had a lot of people come to my coach and say that they see a chemistry in use that they don't see in a lot of different teams. We may not win every game, but we play together.

已有多人对我的教练说，他们在我们团队里看到了一种其他多团队里没有的化学反应。我们不一定每场比赛都会赢，但我们一起努力。

So wherever that torch goes it's not gonna necessarily be a happy occasion.

因此，无论火炬走到哪里，都不一定会是一个快乐的时刻。

Of course, those teen years weren't necessarily carefree, they're famously confusing, which is why so many TV shows and movies revolve around high school turmoil.

当然，少年时光不一定是无忧无虑的，那段时期令人迷茫是众所周知的，这也正是为什么会有如此之多的电视剧和电影围绕骚动的高中生活而展开。

Product claims don't necessarily have to stack up in such a necessarily rigorous way.

产品声明不一定必须以这种严格的方式来进行。

Simulated English tests may not always accurately reflect one's true proficiency and skills.

英语模拟考试不一定总能准确地反映一个人的真实水平和技能。

The working stiff can't win in this country, am I right? - Not necessarily.

在这个国家，工薪阶层是赢不了的，对吗？- 不一定。

But getting sick is not a certain outcome.

但受到这种感染的人不一定就会生病。

But if decline is not inevitable, nor is resurgence.

但是，如果衰落并注定发生，重振威风也不一定。

But I wouldn't necessarily say a greater profitability because the profit is very, very marginal.

但我不一定是说利润更大，因为利润常常薄。

Stay calm, it doesn't necessarily mean what you think it means . . .

保持冷静，不一定就是你所认为的那样？？

" The majority is not always right! "

“大家也不一定都对呀！”