Okay, the user sent "try-out". Let me check the translation rules again. The first rule says to translate all content into Vietnamese. The second rule states that if the content is already in Vietnamese, output it unchanged. The third rule is to provide only the translation result with no explanations.
So, "try-out" is an English word. The Vietnamese translation for "try-out" could be "thử nghiệm" or "thử thách". But I need to make sure which one is more appropriate. "Try-out" can mean a trial or a test, so "thử nghiệm" is more about experimentation, while "thử thách" is challenge. However, in contexts like job trials or product testing, "thử nghiệm" might be better. But maybe the user just wants a direct translation. Let me confirm. Since the user wants the translation without explanations, I should just provide the Vietnamese equivalent. The most common translation for "try-out" in Vietnamese is "thử nghiệm". So the answer should be "thử nghiệm".