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。

A woman captures a moment in time with her camera, freezing a memory forever.

A female athlete from Africa in motion, showcasing her speed and endurance while running.

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

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

Witness a simulated dogfight between a British Supermarine Spitfire and a German Junkers Ju 87 Stuka, two iconic aircraft of World War II.

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