We report Submillimeter Array (SMA) observations of polarized 0.88 mm thermal dust emission and various molecular line transitions toward the early B-type (L * ~ 2 × 103 L ⊙) star-forming region G192.16-3.84 (IRAS 05553 1631). The peak of the continuum Stokes-I emission coincides with a hot rotating disk/envelope (SO2 rotational temperature T_{rot}^{SO_{2}}\sim 84^{ 18}_{-13} K), with a north-south velocity gradient. Joint analysis of the rotation curve traced by HCO 4-3 and SO2 191, 19-180, 18 suggests that the dense molecular gas is undergoing a spinning-up rotation, marginally bound by the gravitational force of an enclosed mass M * gas dust ~ 11.2-25.2 M ⊙. Perpendicular to the rotational plane, a gsim100/cos (i) km s-1 (i ~ 63°) high velocity molecular jet and a ~15-20 km s-1 expanding biconical cavity were revealed in the CO 3-2 emission. The polarization percentage of the 0.88 mm continuum emission decreases toward the central rotating disk/envelope. The polarization angle in the inner ~2'' (0.015 pc) disk/envelope is perpendicular to the plane of the rotation. The magnetic field lines, which are predominantly in the toroidal direction along the disk plane, are likely to be dragged by the gravitationally accelerated rotation.
