界: boundary, scope, extent, circles, group, kingdom (taxonomy)...
应酬: social niceties, social interaction, a dinner party...
多久: (of time) how long， (not) a long time...
继: to continue, to follow after, to go on with, to succeed, to inherit, then, afterwards...
盈利: profit, gain, to make profits...
提防: to guard against, to be vigilant, watch you don't (slip), Taiwan pr....
概率: probability (math.)...
最后: final, last, finally, ultimate...
朝气蓬勃: full of youthful energy (idiom); vigorous, energetic, a bright spark...
英雄: hero...
