一来一往

Explanation: Describe the action of repeated or alternate. 　　Source: Ming Wu Cheng-en, "Journey to the West," the 67th back to the dark laughs Departed 'good oral deaf mute! Do not go! See stick! 'It is more afraid of strange, Flurry gun masking. In that mid-air, one to one to one last look, the Big Dipper to the three-shift hours, no victory or defeat. " 　　Examples: To the sky late, two out of each corner light boat, ~, and swayed the river, up and down light. ★ Qing Wu Jingzi "Scholars" 41st Back