这些不一定是心怀怨恨、有恶意的人。
最大的不一定是最好的。
流行音乐并不一定是劣质的东西，它可以是艺术。
长寿并不一定是指年长的时间更长。
问题不一定是可用资金的数量。
The problem is not necessarily the amount of available funding.
这不一定是一种有效的学习方式。
“崇拜名人不一定是一件坏事。”专家约翰博士说。
"Worshipping famous people is not certainly a bad thing," Dr. John, an expert said.
在学校交朋友可能有点棘手——但它并不一定是这样的！
Making friends at school can be a little tricky—but it doesn't have to be!
这传递的信息是：它们不一定是灾难。
这并不一定是一个问题，这是一种进步。
恐龙的消失并不一定是由天文事件引起的。
The disappearance of dinosaurs is not necessarily caused by astronomical incidents.
“奖励不一定是物质的东西。”科内蒂说。
但结果不一定是这样。
当他们遇到问题时，不一定是老师来解决的。
When they have a problem, it isn't the teacher necessarily coming in to solve it.
结果不一定是那样。
这并不一定是一种新趋势，但多少有点令人费解。
This is not necessarily a new trend, but it is a somewhat puzzling one.
至少，研究开始表明，早期的挫折不一定是致命的。
At the very least, the research is starting to show that early setbacks don't have to be fatal.
他们的老师不一定是最好的，设备什么的也不见得是。
They don't necessarily have the best teachers or the best, you know, equipment or anything.
安眠药虽然对一些人有帮助，但也不一定是有效的治疗方法。
Sleeping pills, while helpful for some, are not necessarily an effective remedy either.
昂贵的东西不一定是富人的专利，除非我们放弃社会的选择权。
Expensive things are not inevitably the province of the rich unless we abdicate society's power of choice.
分层技术给我们提供一个物体的最小年龄，但不一定是它的真实年龄。
The stratification technique gives us the minimum age of an object, which isn't necessarilly its true age.
看电视不一定是有害的，但必须适度，要平衡孩子的其他需求，让孩子健康成长。
TV is not necessarily toxic, but is something that has to be done in moderation; something that balances the other needs of the child for healthy development.
太平洋海啸预警中心的公告称，“海啸是一系列的波浪，第一波并不一定是最大的。”
"A tsunami is a series of waves and the first wave may not be the largest," said a bulletin from the Pacific Tsunami Warning Centre.
这不一定是对的，但是那些不承认这一点的中学毕业生有可能会做出关于上大学的错误决定。
This might not be right, but school-leavers who fail to acknowledge as much risk making the wrong decision about going to university.
名牌学校不一定是教授们的最佳选择；并且，许多教授在多个学院和/或大学之间分割教学时间。
Big name schools are not necessarily the best places for professors; plus, many professors split teaching time between multiple colleges and/or universities.
他的研究表明：“有趣不一定是良好的社交技能和健康的标志，而可能恰恰是人格缺陷的标志。”
"Being funny isn't necessarily an indicator of good social skills and well-being," his research has shown, "it may just exactly be a sign of personality flaws."
这些产品不一定是赔本的，因为它们提高了餐厅对用餐群体的吸引力，其中就包括一些不想吃汉堡的人。
These offerings are not necessarily loss-leaders, as they broaden the appeal of outlets to groups of diners that include some people who don't want to eat a burger.
迪莉娅·史密斯、奈杰尔·斯莱特、杰米·奥利弗和戈登·拉姆齐等厨师让公众意识到，烹饪或者说饮食不一定是一件无聊的事情。
Chefs such as Delia Smith, Nigel Slater, Jamie Oliver and Gordon Ramsay made the public realise that cooking— and eating— didn't have to be a boring thing.
那也就是说，他们上大学实际上是为了成为产生收益的工人阶层运动员，而不一定是像其他集体里的大部分学生那样，上大学是为了接受大学教育。
The idea is that they are really there to be part of the revenue-generating working class of athletes on campus.
众筹可以成为研究人员努力联系公众的一环，人们之所以做出捐赠，是因为“他们感觉自己与筹款者之间有某种联系”，而不一定是因为感觉自己与与科学有联系。
Crowdfunding can be part of researchers' efforts to reach the public, and people give because "they feel a connection to the person" who is doing the fundraising—not necessarily to the science.
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