A young female teacher explains and demonstrates how to define variables in JavaScript, covering the basics of variable declaration and usage.

Footage of a car driving down a road, showcasing its movement and speed.

A breathtaking view of a cloudless blue sky on a sunny day, evoking feelings of calmness and tranquility.

Vladimir, a bearded man, shares a moment with his twin brother while snacking on avocado toast on the couch.

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？

Watch as Will Smith experiences the taste and texture of coconut in this lighthearted and entertaining clip.

A yellow octopus curiously interacts with a MacBook Pro keyboard, typing randomly with its tentacles.