1 2 3 4 | n ん ng い iu ゅう ou ょう |
refer to:
https://www.bilibili.com/video/BV1es41127PE?from=search&seid=11101436971240675305
人，技术，生活。
1 2 3 4 | n ん ng い iu ゅう ou ょう |
refer to:
https://www.bilibili.com/video/BV1es41127PE?from=search&seid=11101436971240675305