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This article may be expanded with text translated from the corresponding article in Czech. (December 2017) Click [show] for important translation instructions. View a machine-translated version of the Czech article. Machine translation, like DeepL or Google Translate, is a useful starting point for translations, but translators must revise errors as necessary and confirm that the translation is accurate, rather than simply copy-pasting machine-translated text into the English Wikipedia. Consider adding a topic to this template: there are already 520 articles in the main category, and specifying|topic= will aid in categorization. Do not translate text that appears unreliable or low-quality. If possible, verify the text with references provided in the foreign-language article. You must provide copyright attribution in the edit summary accompanying your translation by providing an interlanguage link to the source of your translation. A model attribution edit summary is Content in this edit is translated from the existing Czech Wikipedia article at [[:cs:Mistrovství_světa_v_Trail_-_O]]; see its history for attribution. You should also add the template ((Translated|cs|Mistrovství_světa_v_Trail_-_O)) to the talk page. For more guidance, see Wikipedia:Translation.