chimera
noun [ C ] formal uk/kaɪˈmɪə.rə/ us/kaɪˈmɪr.ə/
幻想;妄想，空想
a hope or dream that is extremely unlikely ever to come true
Is the ideal of banishing hunger throughout the world just a chimera? 在全世界消除饥饿的理想是否只是痴心妄想？
biology specialized嵌合体
an organism that contains cells or tissues from two or more different species
an animal-human chimera 动物与人的嵌合体