kukaiCOCA²⁰³³⁰²BNC²³⁶²¹³⁺¹ 基本例句 🌏空海；空该 Bonze Kukai's Letter from the Ambassador to the Imperial Inspector in Fuzhou offers an important clue to whether there existed credentials in the contacts between Japan and China in the Tang Dynasty. 空海所作《为大使与福州观察使书》 ，透露了唐朝与日本交往中是否有国书存在的重大线索。 cnki