Human cells, most human cells, don't function very well in suspension.

人类细胞,至少是大部分人类细胞,在悬浮培养时不能很好的执行细胞功能

耶鲁公开课 - 生物医学工程探索课程节选

Another thing that's different about human cells and animal - human cells and bacterial cells is that many bacterial cells can swim and can exist in suspension, that means just suspended in a fluid.

人类细胞和动物细胞--,和细菌细胞,另一个重要不同是,许多细菌细胞可以游动,可以生活在悬浮液中,就是说可以悬浮在液体中

耶鲁公开课 - 生物医学工程探索课程节选