A developer is creating a feature for an e-commerce platform that automatically translates customer reviews written in Spanish into English. The goal is to provide clear and natural-sounding translations for English-speaking users. Based on your understanding of how to structure instructions for a language model, design a specific prompt template to accomplish this task. In your answer, you must provide the complete template, including a placeholder for the original review text, and briefly justify why your chosen structure is effective for this scenario.