VOA慢速英语:French Farmers Use Drones to Examine Their Crops

navigation – n. the act, activity or process of finding the way to get to a place when you are traveling in a ship, airplane or car, or walking or hiking

smartphone – n. a mobile phone that lets users connect to the internet

monitor – v. to watch, observe, listen to or check (something) for a special purpose over a period of time

optical sensor – n. a device that detects or senses heat, light, sound or motion and then reacts to it in a particular way

GPS – n. Global Positioning System; a radio system that uses signals from satellites to tell you where you are and to give you directions to other places

band – n. a strip of something that is different from what is around it

Are drones being used in your country? If so, for what? Are farmers using drones in your country? Do you support the use of drones? Do you have any concerns about their use? We want to hear from you. Write to us in the comments section.