VOA慢速英语:More Republicans Join 2016 Presidential Race

nominee - n. a person chosen as a candidate

pediatric neurosurgeon – n. a surgeon who operates on a child’s brain, nerves or spinal cord

previous – adj. earlier in time

controversial – adj. relating to or causing much discussion or argument

voluntary – adj. by choice

evangelical – adj. a Christian group that stresses the authority of the Bible, that Jesus Christ is a personal savior, and that these beliefs should be told to people throughout the world

abortion – n. a medical procedure to end a pregnancy and cause death to the fetus