VOA慢速英语:A Princess of Mars, Part Two

spear - n.  a weapon that has a long straight handle and a sharp point

warrior - n. a person who fights in battles and is known for having courage and skill

device - n. an object, machine, or piece of equipment that has been made for some special purpose

equipment - n. supplies or tools needed for a special purpose

armband - n. a band worn around the arm, esp. to show who you are