The mermaid swam gracefully in the ocean's depths.
Meaning: The mermaid moved smoothly and elegantly as she swam in the deepest part of the large body of salt water that covers most of the Earth's surface.
Choice of Words: The word gracefully means in a smooth and elegant manner. Ocean is the large body of salt water that covers most of the Earth's surface. Depths refers to the deepest part of a body of water.
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Related Expressions