門口を出て二三町來た時、私はついに先生に向つて口を切つた。
translation
When I left the gate and came twenty-three towns, I finally spoke to Sensei.
kanji (pronunciations & definitions)
門口: door (かどぐち), entrance, gateway | 出: coming out (で), going out, outflow, efflux, rising (of the Sun or the Moon) | 二三: two or three (にさん) | 先生: teacher (せんせい), instructor, master, sensei, title or form of address for a teacher, master, doctor, lawyer, etc. |
切: eager (せつ), earnest, ardent, kind, keen |