英语翻译Keeps on happening  2.Physical exercise and practice 3.Worries about things at home,school or work  4.Usual or common 5.Try to be the best or the first to finish something 6.Getting better or bigger 7.Looking for differences and similarities between things 

英语翻译
Keeps on happening  2.Physical exercise and practice 3.Worries about things at home,school or work  4.Usual or common 5.Try to be the best or the first to finish something 6.Getting better or bigger 7.Looking for differences and similarities between things