Do you have any difficulties while studying?

你在学习中有什么困难吗？

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He later worked on similar jobs across the length and breadth of England, all the while studying the newly revealed strata and collecting all the fossils he could find.

后来，他继续从事相似的工作，足迹遍布整个英国；与此同时，他不断研究那些新近露出的地层，并且收集所有能找到的化石。

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While studying endangered species may provide some insights to scientists, the cost of keeping these animals in existence can not be justified for research purposes alone.

虽然研究濒危物种可能为科学家提供一些领悟，但仅仅为了研究的目的而饲养这些动物的话，其饲养成本是不合理的。

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While studying warships, Fuller realized that they weighed much less than buildings, yet were able to do much more.

VOA: special.2010.05.30

What do you do when you're stuck with a question while studying Physics?

当你在学习物理时被一个问题难倒了怎么办？

学习和交际都重要 - SpeakingMax英语口语达人

These won't be graded, you don't have to turn them in, it's just to give you some extra practice if you want while you're studying for the exam.

这些题目不会记分，你们也不需要交上来，只是如果你需要的话，这可以让你,在准备考试的过程中得到更多的训练。

麻省理工公开课 - 化学原理课程节选

She has also worked as a reporter for the BBC while studying in United Kingdom.

CNN: About

While studying at Indiana University, he went to Cairo for a year on a study-abroad program.

CNN: Seeds for year-old Egyptian revolution sown long ago

In 1967, while studying in Hamburg, she found herself sculpting with fibreglass and polyester.

ECONOMIST: Rebecca Horn