[1] Stringsdict File Format (2015-02-18 15:21:47 +09:00 版) https://developer.apple.com/library/ios/documentation/MacOSX/Conceptual/BPInternational/StringsdictFileFormat/StringsdictFileFormat.html

A .stringsdict file is a property list used to define language plural rules.

[2] Localizing with Plurals and Genders | [objective toast] (2015-02-18 15:34:38 +09:00 版) http://objectivetoast.com/2014/04/21/localizing-with-plurals-and-genders/

[3] Pluralization on iOS and OS X (2015-02-18 15:37:02 +09:00 版) http://pulkitgoyal.in/pluralization-on-ios/