单核细胞增多症dān hé xì bāo zēng duō zhèngdanhexibaozengduozhengmononucleosisCharacters in this word单single, individual, only增to increase多much, many, multi-核core, kernel症ailment, disease, illness细fine, detailed胞womb, placenta, fetal membraneStudy it in Yanamino