A unique sight: a trash collector wearing a suit while on the job, blending professionalism with a typically casual occupation.

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

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

A young child rides a bicycle, demonstrating balance and coordination skills.

A lighthearted moment with Arnold Schwarzenegger, the actor and former Governor of California, completely covered in flour.

警方调查年轻CEO李宇峰的死亡案件，发现尸体上的小刺痕和毒草残留物，揭开了一场复杂的谋杀案的序幕。

Learn about the guitarra, a stringed musical instrument originating from Spain, its history, types, and playing techniques.