〈党员须宣传革命主义〉，在梧州对国民党员的演说，1921年10月29日至11月15日间

Sustainability is not a choice anymore; it's a necessity for any business that wants to thrive in the long term.

The ultimate goal of machine learning is to make machines that can learn from experience and improve their performance over time.

你无法满足所有人的要求。