材料的质量反映了品质的质量。
We must balance the need for affordable energy today with the imperative of building a sustainable energy future.
History will prove who truly serves the people.
A good statistical analysis should not only answer the questions posed but also raise new questions.
一个好的统计分析不仅应该回答提出的问题，还应该提出新的问题。
I believe that art can be a powerful tool for social change.