She can speak German and French, not to speak of English.

她能说德语和法语，更不用说英语了。

They've got no friends to speak of.

他们没一个像样的朋友。

She's saved a little money but nothing to speak of.

她攒了一点钱，不过数目不值一提。

Mr. Sesemann began to speak of their journey and how sorry he was to give it up.

赛赛曼先生开始讲述他们的旅程，以及他对放弃这段旅程感到多么遗憾。

When they overlook the progress of the building, they generally come to speak of Heidi.

当他们查看建筑的进展时，他们通常会谈到海蒂。