Various considerations and conjectures are made on the surprisingly large total cross section for hadron production which has recently been observed in the ${e}^{+}\ensuremath{-}{e}^{\ensuremath{-}}$ colliding-beam experiment at the Cambridge Electron Accelerator. First, they focus on the relative magnitude of cross sections for one-photon annihilation and for the two-photon process. Second, the asymptotic limit $R$ of the ratio $\frac{\ensuremath{\sigma}({e}^{+}+{e}^{\ensuremath{-}}\ensuremath{\rightarrow}\mathrm{hadrons})}{\ensuremath{\sigma}({e}^{+}+{e}^{\ensuremath{-}}\ensuremath{\rightarrow}{\ensuremath{\mu}}^{+}+{\ensuremath{\mu}}^{\ensuremath{-}})}$ is predicted to be $R\ensuremath{\cong}12{\ensuremath{\pi}}^{2}({{f}_{p}}^{\ensuremath{-}2}+{{f}_{\ensuremath{\omega}}}^{\ensuremath{-}2}+{{f}_{\ensuremath{\varphi}}}^{\ensuremath{-}2})=5.5\ifmmode\pm\else\textpm\fi{}0.7$ from the PCDC (partially conserved dilation current) anomaly and vector-meson dominance, and estimated to be less than 15 for $\ensuremath{\Gamma}(\ensuremath{\epsilon}\ensuremath{\rightarrow}{\ensuremath{\pi}}^{+}+{\ensuremath{\pi}}^{\ensuremath{-}})=400$ MeV from the first evidence found at Frascati for hadron production by the two-photon process. A comment is also made on the present and future ${e}^{+}\ensuremath{-}{e}^{\ensuremath{-}}$ colliding-beam experiments at SLAC and DESY.