fallback 的英语意思
fallbackfallback /ˈfɔːlbæk $ ˈfɒːl-/ noun [countable] 
查看全部语言翻译 something that can be used or done if a supply, method etc fails（供应、方法等出现问题时）可供替代使用的事物或措施 SYN backup: 
It’s wise to have an extra video player as a fallback.多备一台视频播放器作为备用，这是明智之举。 Do you have a fallback option?你有备用方案吗？ → fall back on somebody/something at fall1
查看全部语言翻译 something that can be used or done if a supply, method etc fails（供应、方法等出现问题时）可供替代使用的事物或措施 SYN backup: It’s wise to have an extra video player as a fallback.多备一台视频播放器作为备用，这是明智之举。 Do you have a fallback option?你有备用方案吗？ → fall back on somebody/something at fall1