VOA慢速英语:顶级视频通话软件用于学习工作和社交

feature – n. a typical quality or important part of something

screen – n. a flat area on an electronic device where images can be seen

reliability – n. ability to be trusted or believed

chat – n. an informal talk with someone

relax – v. to become happy and comfortable because nothing is worrying you

random – adj. done or chosen without any plan or system

occasionally – adv. not happening often