The idiom "sailing against the current, Luoyang paper is expensive" comes from which works everyone is scrambling to copy.

The idiom "Luoyang paper is expensive" is named because everyone is scrambling to copy Zuo Si's Sandu Fu works.

"Keeping out the cold" is a computer client game with martial arts theme developed by Hangzhou Netease Thunder Fire Technology Co., Ltd., which belongs to a large-scale multiplayer online role-playing game. The game was opened on June 29, 20 18, and the file was not deleted.

Against the background of three series of novels by China hero and Ryan, the novel tells a tragic story of night arrival at the end of the Northern Song Dynasty, which involves the life scenes of the Northern Song Dynasty, such as feuds between rivers and lakes, court disputes, gang vendettas, emotional entanglements, and various market situations.

Weapons and equipment:

The character equipment in the game uses the common settings of most games. Equipment is divided into weapons, armor and ornaments. Changing equipment can strengthen the damage to the enemy in battle. All kinds of equipment can be obtained by fighting except in shops.

Weapon: an equipment that increases attack power. There are professional wearing restrictions on weapons in the game. Weapons are divided into swords, knives, guns, gloves, soul lamps, ribbons and so on.

Armor: equipment to increase defense. There are professional wearing restrictions on internal defense in the game. Armor is divided into clothes, gloves, shoes, etc.