井well; something in the shape of a well
决策make a decision; policy decision
嘉宾distinguished/important guest
开夜车drive a vehicle at night; work late into the night
捐款contribute money; contribution
救助help somebody in danger or difficulty
简介introduce briefly; brief introduction
箭arrow; distance covered by a flying arrow
近日recent days; coming few days
进攻assault; attack in a struggle
文艺界circles/world of literature and art