直接這樣就行\begin{align}{{\left( {{x}_{1}}-{{x}_{2}} \right)}^{T}}&\left[ {{f}^{R}}\left( t,{{x}_{1}},{{y}_{1}},{{x}_{1\tau }},{{y}_{1\tau }} \right)-{{f}^{R}}\left( t,{{x}_{2}},{{y}_{2}},{{x}_{2\tau }},{{y}_{2\tau }} \right) \right] \nonumber \\&\le {{\left( {{x}_{1}}-{{x}_{2}} \right)}^{\text{T}}}L_{1}^{R}\left( {{x}_{1}}-{{x}_{2}} \right)+{{\left( {{y}_{1}}-{{y}_{2}} \right)}^{\text{T}}}L_{2}^{R}\left( {{y}_{1}}-{{y}_{2}} \right) \nonumber \\&+{{\left( {{x}_{1\tau }}-{{x}_{2\tau }} \right)}^{T}}\Delta _{1}^{R}\left( {{x}_{1\tau }}-{{x}_{2\tau }} \right)+{{\left( {{y}_{1\tau }}-{{y}_{2\tau }} \right)}^{\text{T}}}\Delta _{2}^{R}\left( {{y}_{1\tau }}-{{y}_{2\tau }} \right),\\{{\left( {{y}_{1}}-{{y}_{2}} \right)}^{T}}&\left[ {{f}^{I}}\left( t,{{x}_{1}},{{y}_{1}},{{x}_{1\tau }},{{y}_{1\tau }} \right)-{{f}^{I}}\left( t,{{x}_{2}},{{y}_{2}},{{x}_{2\tau }},{{y}_{2\tau }} \right) \right] \nonumber \\&\le {{\left( {{x}_{1}}-{{x}_{2}} \right)}^{T}}L_{1}^{I}\left( {{x}_{1}}-{{x}_{2}} \right)+{{\left( {{y}_{1}}-{{y}_{2}} \right)}^{T}}L_{2}^{I}\left( {{y}_{1}}-{{y}_{2}} \right) \nonumber \\&+ {{\left( {{x}_{1\tau }}-{{x}_{2\tau }} \right)}^{\text{T}}}\Delta _{1}^{I}\left( {{x}_{1\tau }}-{{x}_{2\tau }} \right)+{{\left( {{y}_{1\tau }}-{{y}_{2\tau }} \right)}^{\text{T}}}\Delta _{2}^{I}\left( {{y}_{1\tau }}-{{y}_{2\tau }} \right),\end{align}