VOA慢速英语:US Senator John McCain Has Brain Cancer

diagnose - v. to recognize a disease or injury by examining someone

tumors - n. a mass of tissue found in or on the body that is made up of abnormal cells

spinal cord - n. the large group of nerves which runs through the center of the spine and carries messages between the brain and the rest of the body

confident - v. having a feeling or belief that you can do something well or succeed at something

toughest - adj. physically and emotionally very strong

chemotherapy - n. the use of chemicals to treat or control a disease such as cancer

conversation - n. a discussion with someone

optimistic - adj. having or showing hope for the future