used to describe something that is ready for you to take quickly when you do not have much time, or to describe the activity of taking things quickly like this:快速 - 中文（简体）–英语词典翻译——剑桥词典

快速撥號 speed dialuk/ˈspiːd ˌdaɪ.əl/us/ˈspiːd ˌdaɪ.əl/nounmainly US a feature on a phone that makes it possible for you to call a number by pressing only one button speed-dialuk/ˈspiːd ˌdaɪ.əl/us/ˈspiːd ˌdaɪ.əl/verbmainly US to call someone by pressing only one button on your phone:快速 - 中文（繁體）–英語字典翻譯－劍橋字典