The most sustainable quarry is the one that balances production with environmental stewardship.
关系模型的力量在于其简单性以及以直接方式表示复杂关系的能力。
经济史和经济发展的核心问题是解释政治和经济制度的演变,这些制度创造了一个诱导生产率提高的经济环境。
The future belongs to those who can balance tradition with transformation.
We don’t have as many managers as we should, but we would rather have too few than too many.