VOA慢速英语:Regrowth of Heart Muscle May Be Possible

limbs –n. referring to arms and or legs

regenerate –v. to regrow after being lost or damaged

translucent –adj. permitting light to pass through

counterpart –n. something that does the same job as something else

mechanism a process or system that is used to produce a particular result

extracellular matrix substance produced by cells and released into the environment in which the cells are embedded; In biology, the extracellular matrix (ECM) is a collection of extracellular molecules released by cells that provides structural and biochemical support to the surrounding cells.

room and board –idiom a place to stay and food to eat

potent –adj. active, strong

matrix –n. something from which something else develops

indicate –v. to show

role –n. the part something plays in a system