从下列选取 [generation] [to the children] (1) [to the grandchildren] (2) [to the great-grandchildren] (3) [to the [nth (generation)] generation] (4) [to the [nth (generation)] generation] (5) [to the [nth (generation)] generation] (10) [to the [nth (generation)] generation] (20) [to the [nth (generation)] generation] (31) [to the [nth (generation)] generation] (45) [to the [nth (generation)] generation] (46)