Okay, the user wants me to translate "last longer" into Japanese. Let me think about the correct translation.
"Last longer" can mean to endure for a longer period of time. In Japanese, the phrase "長持ちする" (nagamochi suru) is commonly used to express something lasting longer. However, depending on the context, there might be variations. For example, if it's about something physical like a product's lifespan, "長持ちする" fits well. If it's more abstract, like a relationship or effect, maybe "長く続く" (nagaku tsuzuku) could be an alternative. But since the user didn't specify the context, the most straightforward and commonly used translation would be "長持ちする".
I should check if there are any other possible translations. "持続する" (josoku suru) means to continue or persist, but it's more formal. "長く続く" is more about continuing for a long time. However, "長持ちする" is the most natural and concise translation for "last longer" in general usage.
Also, the user mentioned that if the content is already in Japanese, output it unchanged. Since the input here is in English, I need to translate it. The user also wants only the translation result without any explanations. So I should just provide "長持ちする" as the answer.