公司的老字号并不一定能保证质量。
A famous old name on a firm is not necessarily a guarantee of quality.
在学校的时候，我以为自己一定能成功。
有八十多个海滩可供挑选，你一定能找到一个晒日光浴的地方。
With over 80 beaches to choose from, you are sure to find a place to lay your towel.
承担更多工作，不一定能让你得到晋升。
Shouldering more of the workload may not earn you that promotion.
教练们都不一定能激励运动员完成学业。
Coaches do not necessarily have the incentive to graduate players.
对一个人有效的笑话不一定能打动另一个人。
Jokes that work on one person won't necessarily land with another.
然而，许多研究发现，感觉和思想并不一定能预测行为。
However many studies have found that feelings and thoughts don't necessarily predict behavior.
事实证明，将孩子或成人分成更小的类别一定能提高利润。
Splitting kids, or adults, into ever-tinier categories has proved a sure-fire way to boost profits.
这不一定能解释它如何变得如此罕见，但解释了它为什么不增加。
It doesn't necessarily explain how it became so rare, but it explains why it doesn't increase.
过去，媒体报道并不一定能提供在飞机上被感染的风险的准确信息。
Media reports have not necessarily presented accurate information about the risk of getting infected on an airplane in the past.
如果我们在圣保罗工厂的员工想出了一个好主意，他们也一定能想出。
If our employees at the Sao Paulo factory come up with a good idea, they will certainly come up with it.
格拉斯提醒说，大多数研究并不一定能证明绿色与健康之间的因果关系，但它们仍然有助于激励人们采取行动。
Glass cautions that most studies don't necessarily prove a causal link between greenness and health, but they're nonetheless helping spur action.
而且在刚开始探索社会时，这些刚成年的孩子们所追寻的特质并不一定能对这些即将进入社会的人产生重要的影响。
And that the characteristics adult children look for when they begin the search are not necessarily the things that make a difference to the people who are going to move in.
但是人们经常发现，西方的方式经常在一个重要方面存在欠缺：它不一定能培养出经济、社会和教育背景良好的伴侣。
But the Western way was often found wanting in an important respect: it didn't necessarily produce a partner of the right economic, social, and educational qualifications.
交响乐乐师不一定能视奏。
不保证一定能成功。
贫困迫使她把他交给了寄养家庭,但她是在明确她最终一定能重新获得抚养权的条件下才这样做的。
Poverty forced her to surrender him to foster families, but only on the understanding that she could eventually regain custody.
如果我们一起努力，一定能找到的。
如果你不半途而废，就一定能实现梦想。
You will surely achieve your dream if you don't give it up halfway.
我相信，只要大家齐心协力，我们一定能早日实现中国梦。
I believe we will achieve our China Dream earlier if all of us pull together.
努力，继续努力，你一定能成功地应对你遇到的任何困难。
Try and keep trying, and you'll be sure to successfully deal with any difficulty you meet with.
只要我们齐心协力，一定能把中国建设得更加美丽，我们的中国梦一定能够实现。
As long as we pull together, we will build a more beautiful China and our Chinese Dream will come true.
在那一刻，他想：“这可能有点自私，但只要我喝下瓶子里的水，我就一定能活着离开这个房间！”
At that moment he thought, "It might be a little selfish (自私的), but as long as I drink the water in the bottle, I can be sure to leave this room alive!"
让他相信他一定能交到朋友。
别人的承诺不一定能兑现。
我相信我一定能好起来。
他长大了一定能成材。
即使你在课堂上用彩色笔标出中重点或记笔记，你都不一定能完全理解你学到的东西。
Even if you highlight important points or take notes in a class, you probably do not fully understand what you learned.
在开始考察时，这些成年的孩子们所追寻的特质并不一定能对即将搬进去的父母们产生重要的影响。
That the characteristics adult children look for when they begin the search are not necessarily the things that make a difference to the people who are going to move in.
在开始考察时，这些成年的孩子们所追寻的特质并不一定能对即将搬进去的父母们产生重要的影响。
That the characteristics adult children look for when they begin the search are not necessarily the things that make a difference to the people who are going to move in.
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