His recent mood swings caused many disruptions in family life.

disruptions 是名词 disruption 的复数形式。disruption 由前缀 dis-（表示"分离、否定"）和词根 rupt（来自拉丁语 rumpere，意为"打破"）加上名词后缀 -ion 构成，字面意思是"打破正常状态"，引申为"干扰、中断"。 在句中指情绪波动对家庭生活正常秩序造成的多次干扰和中断。