Okay, the user wants me to translate "exchanged blows" into Japanese. Let me think about the correct translation.
"Exchanged blows" usually means two people fought or had a physical confrontation. In Japanese, the phrase "殴り合い" (naori ai) is commonly used to describe such a scenario. It literally translates to "hitting each other" but is often used in contexts where two people are fighting or arguing physically.
I should check if there's a more formal or alternative translation, but "殴り合い" seems appropriate here. The user specified to provide only the translation without explanations, so I just need to output that.
Also, the user mentioned if the content is already in Japanese, leave it as is. Since "exchanged blows" is English, translating it is necessary. No need for any additional text. Just the Japanese equivalent.