Marinated Cucumbers, Onions, and Tomatoes Recipe

1. In a large bowl, combine the cucumber slices, onion slices, and tomato.
2. In a separate bowl, mix together the vinegar, oil, sugar, water, salt, and pepper until the sugar and salt dissolve.
3. Pour the vinegar mixture over the vegetables and toss gently to coat everything.
4. Cover the bowl and refrigerate for at least 2 hours, allowing the flavors to meld and the vegetables to marinate.
Serve the marinated cucumbers, onions, and tomatoes as a refreshing and flavorful side dish.