Okay, the user wants me to translate "exchanged blows" into Traditional Chinese. Let me think about the correct translation.
"Exchanged blows" usually means two people fought or had a physical confrontation. In Chinese, the common phrase for this is "互毆" (hù ōu), which literally means "mutual beating" or "fought each other."
I should check if there's a more idiomatic expression. Sometimes "打架" (dǎ jià) is used for a fight, but "互毆" is more specific to exchanging blows. Also, considering the user's rules, if the content is already in Traditional Chinese, leave it as is. Since the input is in English, I need to translate it.
Another possibility is "互相攻击" (hù xiāng gōng jī), which means "mutually attack," but that's more about attacking each other rather than physical blows. "互毆" seems more accurate here.
I should confirm that "互毆" is the standard translation. Maybe check some examples. Yes, in news articles or contexts where two people fight, "互毆" is commonly used. So the correct translation should be "互毆."