It's better to study fairly briefly but often.
最好非常短暂而经常地学习。
In those countries, women and girls spend several hours collecting water, but often polluted, far away from their families.
在这些国家，妇女和女孩要花几个小时去离家很远的地方打水，但水往往是受到污染的。
Readers of this overheated but often on-the-mark polemic will conclude that the safest tactic is organic food and a fly swatter.
这场过热但经常中肯的论战的读者们会下结论，最安全的策略是有机食品和一个苍蝇拍。
Students are graduating with a variety of skills and interests, but often find themselves overwhelmed when it comes to choosing an ultimate career goal.
学生们毕业时还拥有各种各样的技能和兴趣，但他们往往发现，自己在选择最终职业目标时会不知所措。
They were not only curious, but often had a strong desire to control their environment, improve their learning efficiency and increase their own learning resources.
他们不仅好奇，而且往往有强烈的欲望想控制自己的环境，提高自己的学习效率，增加自己的学习资源。
Some workers, like Jane Matheson, are retrained to handle the new equipment, but often a whole new set of skills is required and that means a new, and invariably smaller set of workers.
有些工人，比如JaneMatheson，会重新接受培训来使用新设备，但通常需要一整套新的技能，这意味着需要一批新的、规模更小的工人。
Yes, they have homework but often no housework.
是的，他们有家庭作业，但常常不要求做家务。
Perhaps it holds true for some cases, but often it does not.
也许这在某些情况下是正确的，但通常不正确。
但作出判断常常没那么容易。
但经常不是很明确。
But often the boilerplate code isn't so pretty.
但是通常来说，这些样板代码并不会如此精美。
But often, we don't give ourselves that permission.
但是，我们经常不给自己那些许可。
The chemistry is important, but often incidental.
化学很重要，但是在这个故事中只是偶然出现。
Maybe that happens, but often things only get more messy.
可能那也会发声，但是事情通常会变得更糟糕！
The age difference is at least a decade, but often more.
这里的年龄差距至少要有十岁，通常都多于十岁。
This button almost never helps users, but often hurts them.
这些按钮非但不能帮助用户，还可能伤害到他们。
At the blunt end are forced mergers: messy, but often effective.
钝器包括强制合并：乱糟糟，但往往有效。
Maybe you do. But often you can start sooner than you think.
你多半会这样做，但其实你可以在思考准备之前就着手行功。
But often women are looking for emotional support, not solutions.
但女人通常需要温情的鼓励，而不是解决办法。
It's not always possible, but often you can work towards that goal.
虽然这并不总能实现的，但是要朝着这个目标努力。
I may listen to music from time to time, but often enjoy the silence.
我可能时不时的听听音乐，但我通常享受那种安静。
Nor is legality the same as sustainability, but often they are close.
再说合法并不等同于可持续性，但它们往往接近。
But often, they provide information that could be got in no other way.
但是随机评估常常能提供一些其它方式不能提供的信息。
These options are available, but often offer no performance advantage.
可以使用这些选项，但通常不会带来性能上的提高。
Opportunities are present all the time, but often they go by unnoticed.
机会无处不在，但经常在人们的忽略中消失。
Opportunities are present all the time, but often they go by unnoticed.
机会无处不在，但经常在人们的忽略中消失。
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