Hxen.com's tips：Every day persisted can learn English well!-->■Learn English Everyday■
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
