专家称，目前面临的挑战是让全世界都使用它。
Experts say the challenge now is to get the world to use it.
教育技术专家的一生就是一个不断挑战的过程。
Life as an educational technologist is a constant challenge.
施瓦布补充到，为应对人们清洁用水的挑战，更广领域的专家们应携手努力。
Schwab added that a wider field of experts is needed to tackle the challenge of getting people clean water.
应用推荐