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

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

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

一组描述夕阳下的美景和诗情画意的文字，描绘了夕阳下的自然美景和人文情怀。

Watch as a young boy determinedly runs uphill to reach a breathtaking viewpoint, symbolizing perseverance and a connection to something greater.

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

A rare sighting of a panda in the heart of New York City's Times Square, surrounded by towering skyscrapers and bustling streets.