“社交电量用完了”是很口语的说法，意思是跟人说话太久，需要安静一下。
"My social battery is drained" is a colloquial expression, meaning that you have talked to people for too long and need some quiet time.
"My social battery is drained" is a colloquial expression, meaning that you have talked to people for too long and need some quiet time.