The bird flew across the sky swiftly.

Meaning: This sentence describes a bird that is flying very quickly and easily. It is moving through the sky with grace and speed.

Choice of Words: Fly means to move through the air using wings. Across means from one side to the other. Swiftly means moving quickly and easily. When you put them together, "The bird flew across the sky swiftly" means the bird was flying through the sky very quickly.

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Related Expressions