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

了解中国唐代伟大诗人杜甫的故事，他如何从贫穷学士成为官员和诗歌奇迹的创造者，及其对生命和人民的热爱和关怀。

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

Ariana Grande makes a stylish appearance on the blue carpet, waving to fans and posing for photos.

The Terminator star shows off his cooking skills, or perhaps just his grip strength, as he holds a frying pan with ease.

A teddy bear flees from a giant monster with sharp teeth through a dense forest in this animated adventure.

Explore the incredible defense system of the human body, from the different jobs and components of the immune system to its response to infections and how it keeps you safe.