アイヌの歴史 Part2

597 ：世界＠名無史さん：2020/07/03(金) 22:54:34.75 0.net

>>596
https://en.wiktionary.org/wiki/lingua_franca
A common language used by people of diverse backgrounds to communicate with one another, often a basic form of speech with simplified grammar, particularly, one not the first language of any of its speakers.
特にその話者のいずれもが第一言語としないものをいう

半可通はこれだから困る