There were so many interruptions, I couldn't get on with my work.

interruptions 是名词 interruption 的复数形式。interruption 由前缀 inter-（表示"在...之间"）和动词 rupt（来自拉丁语 rumpere，意为"打破"）加上名词后缀 -ion 组成，字面意思是"在中间打破"，引申为"打断、干扰"的意思。