Fins cut water like sharp knives.

Meaning: This sentence describes the fish's fins moving through the water quickly and efficiently, cutting through it like sharp knives.

Choice of Words: Fins are the wing-like structures that help a fish swim. Cut means to divide or separate something with a sharp object. Water is a transparent, colorless liquid that covers much of the Earth's surface. Like is used to compare two things. Sharp means having a keen edge or point.

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