1c Paul finds it difficult to learn English. Listen and complete the learning challenges he talks about.

保罗发现学英语很难。听录音，完成他所谈到的学习方面的挑战。

youdao

I hope that this series of articles inspires other developers to implement math routines in PHP for the pleasure, technical, or learning challenges involved.

我希望这个系列的文章能启发其他开发人员出于乐趣、技术或学习挑战的目的而用php来实现数学例程。

youdao

Through this clear lens, problems become challenges, and challenges become opportunities for learning.

通过这个清晰透镜，问题变为挑战，挑战变为学习的机会。

youdao

The challenges that... First of all, you got to understand that learning a language takes time.

挑战就是，首先，你必须明白学习一门语言是件耗时间的事。

学第二外语的时候 - SpeakingMax英语口语达人

Watson has been gaining knowledge in the field of medicine, and Cleveland Clinic with IBM recognized the opportunity for Watson to interact with medical students to help explore a wide variety of learning challenges facing the medical industry today.

ENGADGET: Cleveland Clinic and IBM team up to make Watson a Doctor (video)

In the years since we have learned many lessons about how to provide distance learning and overcome challenges that MOOCs are just beginning to face: What happens when a student has trouble completing an assignment?

FORBES: MOOCs Are No Education Panacea, but Here's What Can Make Them Work

Middlebury Center for Social Entrepreneurship: The center offers Middlebury students a wide range of learning opportunities, including an annual symposium featuring the brightest stars of social entrepreneurship, summer grants, multi-year fellowships, and the MLab, a weekly discussion for students learning about the challenges of social change leadership.

FORBES: Social Entrepreneurship Is Bringing Purpose To Higher Education