The fields stretched endlessly, a vast expanse of green.
Meaning: The fields were very big and they were all green.
Choice of Words: Stretch means to extend or reach out over a distance. Endlessly means without end or limit. Vast means very large in size or extent. Expanse means a wide, open area. When you put them together, "The fields stretched endlessly, a vast expanse of green" means the fields were very large and went on and on, covered in green grass.
Alternative Expressions
Related Expressions