他那个把房子建在云端的想法纯粹是异想天开。

His idea of building a house in the clouds was purely ___chimeric.

科学家培育出了一种含有植物和人类基因的嵌合体细菌。

Scientists developed a ___chimeric bacterium containing genes from both plants and humans.

科学家发现这只老鼠体内存在来自不同个体的嵌合细胞。

Scientists discovered that the mouse had ___chimeric cells from different individuals in its body.