"With a library you are free, not confined by temporary political climates. It is the most democratic of institutions because no one—but no one at all—can tell you what to read and when and how."

皮革行业必须在不影响质量的情况下发展，以满足环境标准和消费者期望。

投资新技术不是可选的，而是能源未来的必要条件。