妹(いもうと) imoutoは wa２１ 21で de大(だい)学(がく)生(せい) daigakuseiです desu。 My sister is 21 and a college student. Literal Younger-sister [topic-は] 21 at college-student. ２１で — で here functions as a connective form of the copula だ, linking the age statement to the occupation. 大学生 ('college student') is 大学 ('university') + 生 ('student'). familyschooleducation
妹(いもうと) imoutoは wa２１ 21で de大(だい)学(がく)生(せい) daigakuseiです desu。 My sister is 21 and a college student. Literal Younger-sister [topic-は] 21 at college-student. ２１で — で here functions as a connective form of the copula だ, linking the age statement to the occupation. 大学生 ('college student') is 大学 ('university') + 生 ('student'). familyschooleducation