Learn about email, its history, and how it works, including sending, receiving, and managing electronic messages.

A mysterious grey alien wearing a cowboy hat stands in a field, with a strange liquid dripping from its fingers to the ground, set in the 1890s American West.

Watch as Super Girl demonstrates various abdominal exercises to help strengthen and tone the core muscles.

一组描述夕阳下的美景和诗情画意的文字，描绘了夕阳下的自然美景和人文情怀。

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。

A carefree girl dances and twirls near the beach, enjoying the sun and sea breeze.

Learn about the life and character of Chandler Bing, the witty and lovable friend from the popular TV show Friends, played by Matthew Perry.