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Footage of busy city streets on a rainy day, with people rushing to their destinations under colorful umbrellas.

A scene from the 1990 comedy film 'Kindergarten Cop' where Arnold Schwarzenegger's character punches a pig.

习惯可以改变一个人，好的习惯让我们变得更好，坏的习惯让我们不由自主。如何养成好的习惯，改变自己？

Learn about the life and career of Elon Musk, CEO of SpaceX and Tesla, and his innovative ventures in technology and space exploration.

A young man in a black hoodie takes the stage, singing to a large and enthusiastic crowd at a live concert event.

Learn about the fundamental principles of electric circuits, including voltage, current, resistance, and common components like wires, batteries, and switches.