What's the real name of a madman swimming in a black hole?

Liu Jian.

Swimming and fishing mainly refers to a dynamic outdoor fishing project, that is, rowing boats, bamboo rafts, rafts, kayaks, tires and other water sports tools for fishing.

Especially in the middle of the river, it is a general term for long-line string fishing, moving wooden frame fishing, anchor hook fishing, sway hook fishing and towing fishing.

Fishing needs to be done outdoors. You need to know some outdoor knowledge and skills when fishing, such as camping, picnicking, safety and protection.