How to pronounce the polyphonic word "dun" and how to form words?

The pronunciation of Dun is dùn and dú. Word combinations are: sudden, sleepy, tired, Newton, pause, epiphany, pause, fatigue, pause, pause, pause, pause, pause, pause, pause, pause, pause, pause, pause, pause, pause, pause.

First, suddenly [dün shí]?

Adverbs. Immediately (only used to describe the past).

Interpretation of Quotations: Chapter 4 of Yang Mo's Song of Youth: "On Sunday morning, a dozen primary school students came to the river in Wulizhuang, surrounded by willows, and suddenly they were very lively."

Second, sleepy [kê n dê n]?

1, too tired to support.

2. (livelihood or situation) Difficult and embarrassing.

Interpretation of Quotation: Yin Qian's Selected Works of Yin Qian: "She is bent on turning the ugly duckling into a white swan, so that she will not hesitate to divorce her beloved husband. It is said that they were in love before, and later it was because her husband had a difficult career. "

Third, Lawton? [láo dün]?

Very tired, very tired.

Interpretation: Shi Ming Naian's "Water Margin" 34th time: "If you are tired today, I won't beat you. Go back and come back tomorrow. "