"motormouth" in Chinese (Simplified)
话匣子话多的人
Definition
一个说很多话的人，常常说得很快，很难插话，别人可能会觉得烦。
Usage Notes (Chinese (Simplified))
“motormouth” 属于非正式表达，通常带有一点调侃或轻微贬义。常形容社交场合中说个不停的人。与“chatterbox”类似，但“motormouth”更强调说话快且难以打断。不适用于正式场合。
Examples
Tom is such a motormouth; he never stops talking in class.
汤姆是个大**话匣子**，在课堂上从不停嘴。
She was called a motormouth by her friends because she talked so much at lunch.
她的朋友因为她午餐时说太多话而叫她**话匣子**。
Don't be a motormouth during meetings.
开会时别做**话匣子**。
Once he starts, that motormouth just can't be stopped!
他一说起来，那个**话匣子**就停不下来！
My sister is a real motormouth on the phone – she'll talk for hours.
我妹妹打电话时真是**话匣子**，能聊好几个小时。
Why do you always turn into a motormouth at parties?
你怎么一去派对就成了**话匣子**？