Translated values
Translated values are stored in the language tables, also called the L_ tables. If the base language is not US English, then translated values include base language values. Secondary language values are always included in translated values.
Base values are the localizable data that is stored in the language tables and that are assumed to be written in the base language. By default, the base language is US English. If the base language remains in US English, internal values are base language values. Otherwise, the base language values are stored in the language tables with other language values.
Secondary languages are languages other than the base language. Secondary language values include the different translations of the localizable data that is written in the supported secondary languages and that is stored in the language tables. Secondary language values are always stored in the language tables. You can add secondary languages in the Globalization Manager.
If the base language is not US English, US English is treated as a secondary language, and US English values are stored in the language table.