VOA慢速英语:如何让你的手机成为一个放大镜

menu - n. a list of the foods that may be ordered at a restaurant​

contract - n. a legal agreement between people, companies, etc.​

magnifying glass - n. a specially shaped piece of glass that is attached to a handle and is used to make an object look larger than it is

squint - v. to look at something with your eyes partly closed

zoom - v. to adjust the lens of a camera

focus - n. a state in which something (such as a camera, a telescope, or a person's eyes) produces a clear picture or image​

invert - v. to change the position, order, or relationship of things so that they are the opposite of what they had been

default - n. a setting, option, etc., that a computer uses if you do not choose a different one

strobe light - n. a bright light that flashes on and off very quickly​

screenshot - n. an image of the data displayed on the screen of a computer or mobile device.