Meaning: This sentence is describing the action of birds flying quickly through the air.
Choice of Words: "Birds" are warm-blooded vertebrates that have feathers and lay eggs. "Fly" means to move through the air using wings. "Fast" means to move or happen quickly. "Air" is the invisible mixture of gases that surrounds the earth. Together, "Birds fly fast air" describes the action of birds moving quickly through the air using their wings.
No related expressions found.