digression
n. 离题;脱轨
复数 digressions
例句
Let me just finish this digression.
让我赶紧结束这次跑题。
Let me go into another litter digression.
让我再跑题一下。
"People don't want to search; it's a digression," he said.
“人们不想搜索;这是一个题外话,”他说。