理解劳动力市场的最佳方式是观察现实数据，而不仅仅是理论模型。
The best way to understand labor markets is to look at real-world data, not just theoretical models.
At SF Express, we not only provide courier services, but also a sense of trust and peace of mind.
Tyranny will fall, freedom will endure.
目的的概念在行为的科学解释中没有位置。
Every setback is a setup for a comeback.