VOA慢速英语:苹果谷歌将联合推出疫情追踪系统

team up – v. to join in cooperation to work together on something

trace – v. to find the origin of something

contagious – adj. having a sickness that can be passed on to someone else

app – n. a program for a smartphone or other device that performs a special function

accelerate – v. to happen more quickly

convince – v. to make someone believe something is true

society – n. a large group of people who live in the same souncty or area and have the same laws, traditions, etc.

access – n. a way of getting near, at, or to something or someone

mitigate – v. to reduce the harmful effects of something