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

Learn how to safely start your own startup with personalized guidance and access to essential resources, empowering employees to become successful entrepreneurs.

A heartwarming moment of a mother bonding with her newborn baby, filled with love and joy.

A woman showcases her dance skills with a lively and energetic routine, moving to the rhythm with passion and expression.

Footage of busy city streets on a rainy day, with people rushing to their destinations under colorful umbrellas.

探索18岁青少年的生活、挑战和机遇，了解这一重要人生阶段的特点和意义。

A regal black princess crown paired with a elegant black dress, perfect for formal occasions or costume wear.