Learn about the guitarra, a stringed musical instrument originating from Spain, its history, types, and playing techniques.

Watch Dwayne 'The Rock' Johnson show off his dance moves on stage, bringing energy and enthusiasm to the crowd.

Justin Bieber flees in fear as a CGI Tyrannosaurus Rex chases him in this humorous and fictional scenario.

Watch Dwayne Johnson showcase his DJing skills, blending his charisma and energy behind the decks.

A heartwarming moment as a man gets down on one knee to propose to his girlfriend, capturing the surprise and joy of the special moment.

A simulated spacecraft navigates the intense gravitational forces surrounding a black hole, showcasing the warping of space-time.

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？