Sandcastles crumbled under the crashing waves.
Meaning: The structures made of sand that were built by children on the beach broke into small pieces as the waves hit them with great force.
Choice of Words: Sandcastles are structures made of sand, usually built by children on the beach. Crumbled means to break into small pieces. Crashing means to hit something with great force. Waves are ridges of water that move across the surface of a body of water.
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