行动和知识不是彼此的障碍。
Action and knowledge are not obstacles to each other.
在股票中赚钱的关键是不要被吓跑。
"The challenge of quantum mechanics is not in its complexity, but in its simplicity—it forces us to rethink our most basic assumptions about the universe."
Sustainability isn't a trend—it's a responsibility we owe to future generations.
你有时间听我抱怨吗？
光波，无论是以太波还是其他波，在所有情况下都是时间上的周期性过程。