The journey of discovery is filled with uncertainties, but it is these uncertainties that make science so exciting.
发现的旅程充满了不确定性，但正是这些不确定性使科学如此令人兴奋。
每个实验都是与自然的对话，有时自然会对我们耳语它的秘密。
The paper industry has a responsibility to lead the way in sustainable practices—we can't wait for others to show us how.
这就是所谓的适应习惯,安于风俗啊。