The speech was full of ad-libs and witty asides.

讲演中满是即兴之词和诙谐之语。

Loretta's mind went off at a tangent .

洛蕾塔思想突然了。

His account of the fire accident includes a lot of extraneous details.

他对失火事件描述含有大量细节。

Your remarks are far afield.

你太远了。

Don't wander from the subject.

。

Don't stray from the point.

乱扯。

This is meant to be a discussion course.One factor that will legislate against this aim is the instructor's digressive wordiness.

这表示本课程将以讨论方式进行，设此目标原因之一，是为避免本人讲课聒噪，常情况。