Contact with multiple opposite sexes at the same time (if they are of the same sex orientation, they are with multiple same sex) in an attempt to find one of them and develop their relationship. Among the many people who come into contact at the same time, one or several people who are focused on and trained are "key fishing objects". Just like fishing with a net, the wider the net, the more fish it covers, and the greater the possibility of catching fish. Therefore, netizens use net fishing to describe this behavior: the opposite sex that is widely contacted is the "net", and the person who develops a relationship is the "fish" they want to salvage. Therefore, it is important to train a few people, which is called "key salvage". Generally speaking, everyone thinks this is a bad behavior.