VOA慢速英语:New Updates to iPhone Software

operating system - n. the main program in a computer that controls the way the computer works and makes it possible for other programs to function​

introduce - v. to cause (something) to begin to be used for the first time

lock screen - n. what users see on screen before logging into a computer or mobile device​

widget - n. a small, single-purpose application that provides quick information, or quick access to simple functions.

interactive - adj. designed to respond to the actions, commands, etc., of a user

text - n. data handled by a computer, cell phone, etc., that is mostly in the form of words

smart - adj. controlled by computers and able to do things that seem intelligent

habit - n. a usual way of behaving: something that a person does often in a regular and repeated way

advanced - adj. ​beyond the basic level

navigate - v. to find the way to get to a place when you are traveling in a ship, airplane, car, etc.

lyric - n. the words of a song

thermostat - n. a device that automatically adjusts the temperature in a room to a desired level

alert - n. something (such as a message or loud sound) that tells people there is some danger or problem

spam - n. communication that is not wanted : communication that is sent to large numbers of people and that consists mostly of advertising