自然实验是理解现实世界中因果关系的强大工具。
Natural experiments are a powerful tool for understanding causal relationships in the real world.
我读一本无聊的书睡着了，梦见我继续读着，所以我因纯粹的厌倦而醒来。
阅读，阅读，再阅读。什么都要读。
Every film is a journey, and you never know where it's going to take you.
The ocean is not just a resource; it's a responsibility we must uphold for future generations.
世界是一个舞台，但剧本选角糟糕。