Suppose the geometrical explaination to the weak CP phase in quark sector is
also valid for neutrinos, the mixing and CP violation in neutrino system are
discussed. We find a larger JCPβ than 3Γ10β3 implys the
large-mixing solution for solar neutrino problem. In case of bi-maximal mixing,
we predict relative large CP violation with JCPβ larger than 10β3 in
neutrino system, except the third mixing angle approachs to 0 or Ο/2 very
closely.Comment: Latex File, 9 pages with 2 EPS figures, Commun. Theor. Phys. in
press. A notes and some references are added or renewe