protected function getTranslation($id, $domain, $locale, $fallbacks) {
		// Is initialize of the catalog need ?
		if (! isset($this->initializedCatalogs[$locale][$domain])) {
			$this->initCatalogs($locale, $domain);
		}
		
		// Is failure occurred ?
		if (! isset($this->catalogs[$locale][$domain][$id])) {
			if (empty($fallbacks)) {
				return;
			}
			
			$fallbackLocale = array_shift($fallbacks);
			
			return $this->getTranslation($id, $domain, $fallbackLocale, $fallbacks);
		}
		
		return $this->catalogs[$locale][$domain][$id];
	}