Implications of largeBd0-B¯d0mixing

Implications of the large $B_d^0$-B¯ ${}_d{}^0{}_{}{}^{}$ mixing measured by the ARGUS Collaboration are examined. Possible large top-quark mass is estimated. In addition, large CP-nonconservation effects in the two-body nonleptonic decays of $B_d^0$-B¯ ${}_d{}^0{}_{}{}^{}$ and $B_s^0$-B¯ ${}_s{}^0{}_{}{}^{}$ are recalculated. The results show that we still need ∼${10}^6$ $B_d$,${\mathit{s}}^0$-B¯ ${}_d{}^{}{}_{}{}^{}$,${\mathit{s}}^0$ pairs for testing these CP-nonconservation effects in the $B_d$,${\mathit{s}}^0$-B¯ ${}_d{}^{}{}_{}{}^{}$,${\mathit{s}}^0$ system.