How to synthesize the frozen arrow in March

Use 10 wooden arrow+1 ice torch to synthesize. According to the data of the game official website, the synthesis of frozen arrows in March depends on the use of 10 wooden arrows+1 ice and snow torches. Synthesis means: ① The whole is composed of parts: the resultant force of the word ~ is a component of ~. (2) Through chemical reactions, substances with relatively simple components become substances with complex components.