释义：看见一片落叶，就知道一年内的时间将要到头了。通过细微的迹象，可以预料到整个形势的发展趋向与结果。

Natural gas will play a critical role as a bridge fuel, but our eyes must remain fixed on the ultimate goal of net-zero emissions.

Change is not merely necessary to life—it is life.

In business, if you're not moving forward, you're falling behind.

我总是尊重对手，因为他们让我变得更好。