What are the benefits of fishermen?

Let me talk about the benefits of fishermen.

The origin of the idiom: The eleventh time in Qing Liu E's Travels of Lao Can: "The Sino-Japanese War invaded the three northeastern provinces of China, and Russia and Germany intervened to take advantage of the fishermen, and the overall situation changed."

Example of idiom: Mao Dun's Rainbow: "Shanghainese worship profit, so they don't have to work hard."

A synonym for fisherman's gain: a fisherman gains when he sees a struggle between snipes and mussels.

Idiom grammar: as an object; Refers to unexpected wealth.