bilateral
adjective uk/ˌbaɪˈlæt.ər.əl/ us/ˌbaɪˈlæt̬.ɚ.əl/
双边的，双方的
involving two groups or countries
France and Germany have signed a bilateral agreement to help prevent drug smuggling. 法国和德国已经签署了一项双边协定以防止毒品走私。
Compare: multilateralunilateral