But it's not just engines that we might build.

否则它就不能持续工作。

麻省理工公开课 - 热力学与动力学课程节选

Taking foreign genes, genes that aren't naturally expressed or might not even exist inside a cell and putting them there and putting them there in a way where they work, and by work meaning the gene gets expressed or translated into a protein.

将异源基因,即那些在细胞中原本不表达或者,根本不存在的基因转入细胞并让它们工作,工作就是指让基因持续表达并合成蛋白质

耶鲁公开课 - 生物医学工程探索课程节选