Footage of people walking in and out of a grocery store, showcasing daily shopping activity.

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

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

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？

A warm moment with Jason Momoa as he smiles with a fire burning in the background, creating a cozy atmosphere.

A rare glimpse of the former German Chancellor Angela Merkel savoring a plate of spaghetti in a casual setting.

Watch as actor Will Smith savors a delicious plate of spaghetti in this casual, lighthearted moment.