短語詞組短語provably unsolvable 可証明之不可解provably exposed 即完全暴露provably safe 可証明安全性provably secure 可証安全;可証明安全provably difficult 可証明之睏難provably security 可証明安全provably secure operating system 可騐証安全操作系統(tǒng)a provably secure 可証明安全provably -secure 可証明安全 返回 provably