The challenge for us is to create content that is compelling and relevant.
我们的挑战是创造引人入胜且相关的内容。
The Langlands program is a challenge to the boundaries of human knowledge.
成功来自于努力工作、远见和适应能力的结合。
Innovation in traditional industries isn't about reinventing the wheel, but making the wheel turn more efficiently.
民主就是指人民用人民的大头棒打击人民。