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却困扰

却困扰

却困扰

却困扰

2

However , creating a learning environment to foster problem-based learning remains a challenging task to many instructors .

然而，如何创造一个基于问题的学习环境却困扰着不少老师。

3

Fulfilling that desire has , however , stymied experts for decades .

然而愿望达成，却困扰了专家十年之久。

4

I still haven't spotted the defect , but something about the code is bothering me .

至此，我还是没有发现缺陷，但一些代码问题却困扰着我。

5

There is one mythical beast , though, that has haunted physics for almost 150 years .

然而，一个虚构出来的怪兽却困扰了物理学界近 150 年。

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