Provide a detailed explanation of how to make a smoothie, including the ingredients and steps involved. Your response should contain at least 3 placeholders represented by square brackets, such as [fruit]. Highlight at least 2 sections in your answer with markdown, i.e. *highlighted section*. Include keywords [blender, ice, smooth, flavor] in the response. In your response, the word [smoothie] should appear at least 3 times. Your entire response should be in English, and in all lowercase letters. no capital letters are allowed.
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