task_categories:translation language:en language:de language:fr language:es language:pl language:sk language:ja language:zh license:cc-by-sa-4.0 size_categories:100K<n<1M format:parquet modality:tabular modality:text library:datasets library:pandas library:polars library:mlcroissant arxiv:1902.01382 region:us flores machine-translation multilingual benchmark