【1+1英文】

Angela: "I'd like to talk with you again about what happened."
Andy: "Oh, come on. Let's not beat a dead horse."

【1+1中文】

安吉拉：“我还想再和你说说所发生的事。”
安 迪：“哦 算了。咱们不要再白费口舌了。”

【1+1解析】

You are beating a dead horse when you insist on talking about something that cannot be changed.
中文意思：白费口舌