VOA慢速英语:How 3-D Printing Can Create Tissue from Stem Cells

pluripotent – adj. capable of developing into several different cell types

proof of concept – v. evidence gained from an experiment or project

proprietary – adj. something produced and used under an exclusive right

array – n. an ordered series or arrangement

resemble – v. appear similar to something else

ink – n. colored liquid that is used for writing or printing

concentration – v. amount of substance contained in something

degrade – v. break down chemically

parallel – adj. placed side by side