如果在特定区域设置中缺少翻译，如何配置i18n以使用en locale翻译？
目前正在插入翻译缺失的消息。
我正在使用RoR 3.1。
答案 0 :(得分：13)
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以下是答案：
# application.rb
# rails will fallback to config.i18n.default_locale translation
config.i18n.fallbacks = true
# rails will fallback to en, no matter what is set as config.i18n.default_locale
config.i18n.fallbacks = [:en]
# fallbacks value can also be a hash - a map of fallbacks if you will
# missing translations of es and fr languages will fallback to english
# missing translations in german will fallback to french ('de' => 'fr')
config.i18n.fallbacks = {'es' => 'en', 'fr' => 'en', 'de' => 'fr'}