0131名無しさん@1周年垢版 | 大砲2019/12/12(木) 06:03:14.48ID:czLKHMnQ0 これわかりやすい https://www.youtube.com/watch?v=SeKU_NHGYCM If anyone has a question, he or she should ask his or her teacher. ↓ If anyone has a question, they should ask their teacher.