我梦想着有一天，这个国家会站起来，实现其信仰的真正意义。
I have a dream that one day this nation will rise up and live out the true meaning of its creed.
The causal model is the key to making sense of the world.
The path to a lower-carbon future will require multiple solutions and approaches.
我们必须专注于质量和客户满意度，以建立一个持久的品牌。
过去并未死去，它甚至还未过去。