VOA慢速英语:Scientists Uncover Mystery of Mosquito Flight

itch - v. to have or produce an unpleasant feeling on your skin or inside your mouth, nose, etc. that makes you want to scratch

wing - n. a part of an animal's body that is used for flying or gliding

calculate - v. to find a number or answer by using mathematical processes

3D - adj. made in a way that causes an image to appear to be three-dimensional

coordinate - n. one of a set of numbers that is used to locate a point on a map or graph

reverse - v. to change to an opposite direction or state

unmanned - adj. not carrying a person

drone - n. a kind of aircraft that does not carry a pilot or passengers

advantageous - adj. helpful or favorable