Learn about the life and achievements of Bill Gates, from his childhood to co-founding Microsoft and becoming a philanthropic leader.

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。

A poignant moment of a man expressing his emotions, struggling to hold back tears.

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

A teddy bear flees from a giant monster with sharp teeth through a dense forest in this animated adventure.

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Explore the incredible defense system of the human body, from the different jobs and components of the immune system to its response to infections and how it keeps you safe.