从下列选取 [generation] [to the children] (1) [to the grandchildren] (2) [to the great-grandchildren] (10) [to the [nth (generation)] generation] (17) [to the [nth (generation)] generation] (18) [to the [nth (generation)] generation] (21) [to the [nth (generation)] generation] (29) [to the [nth (generation)] generation] (31) [to the [nth (generation)] generation] (38) [to the [nth (generation)] generation] (50)