There are still many causes worth sacrificing for, so much history yet to be made.
还有许多东西是值得牺牲的，还有这么多的历史等着我们去创造。
Economics is the study of how societies use scarce resources to produce valuable goods and services and distribute them among different individuals. If we think about the definitions, we find two key ideas that run through all of economics:
我真的不考虑年龄。我认为人的年龄取决于他们的感受和行为。
"Language is the house of being. In its home man dwells."