The best way to learn is by doing and making mistakes.

电影是其自身社会的反映。

Safety is the lifeline of the petroleum industry; it must never be neglected.

预测未来的最好方法就是创造未来。

应对不自由世界的唯一方法是变得如此绝对自由，以至于你的存在本身就是一种反叛。