So these are people who have volunteered to undergo major surgery so that one of their own healthy kidneys can be removed and transplanted into a very ill stranger that they've never met and may never meet.
Tito lidé dobrovolně podstoupili operaci, aby jim byla odebrána zdravá ledvina a dána cizímu nemocnému člověku, kterého nejspíš nikdy nepotkají.