She longed to explore the vastness of space.

Meaning: The sentence is describing what the little girl wanted to do. It's like saying, The little girl wanted very much to travel around space and learn more about it.

Choice of Words: Longed means to want something very much. Explore means to travel around an area in order to learn more about it. Vastness means very large in size or amount. Space is the area beyond the Earth's atmosphere. When you put them together, "She longed to explore the vastness of space" means the little girl wanted very much to travel around space and learn more about it.

Alternative Expressions

Related Expressions