Okay, the user wants me to translate "shoo-in" into Vietnamese. Let me check what "shoo-in" means. It's an English term that refers to something that is certain to happen or be the case, like a sure thing. Now, I need to find the equivalent in Vietnamese. The direct translation might not exist, so I should think of a common phrase that conveys the same meaning. In Vietnamese, phrases like "chắc chắn" or "chắc chắn sẽ xảy ra" are used to express certainty. However, "shoo-in" is often used in contexts like sports or competitions where the outcome is predictable. Maybe "điều chắc chắn" or "kết quả chắc chắn" would work. Let me verify if there's a standard translation for this term. If not, using "chắc chắn" as an adjective might be the best fit. The user also mentioned that if the content is already in Vietnamese, I should leave it unchanged. Since "shoo-in" is English, I need to translate it. The user wants only the translation without any explanations. So the answer should be "chắc chắn" or a similar phrase. I'll go with "chắc chắn" as the most straightforward translation.