  The study of a EW theory without spontaneous symmetry breaking is presented.
A new symmetry breaking, axial-vector symmetry breaking, is found.
M^{2}_{W}=1/2g^{2}m^{2}_{t}, m^{2}_{Z}=\rho m^{2}_{W}/cos^{2} \theta, and
G_{F}=1/(2\sqrt{2}m^{2}_{t}) are obtained and they agree with data. It has been
proved that the theory is renormalizable and unitary.
