morning person
noun [ C ] uk/ˈmɔː.nɪŋ ˌpɜː.sən/ us/ˈmɔːr.nɪŋ ˌpɝː.sən/
informal感觉在早晨精力充沛的人
someone who feels awake and full of energy in the mornings
He's not really a morning person - he doesn't even talk before about eleven o'clock! 他真的不是一个在早晨精力充沛的人——在11点钟前他都不会和人说话。