开场: to begin, to open, to start, beginning of an event...
得力: able, capable, competent, efficient...
提炼: to extract (ore, minerals etc), to refine, to purify, to process...
中学生: middle-school student, high school student...
身影: silhouette, figure...
刺: thorn, sting, thrust, to prick, to pierce, to stab, to assassinate, to murder...
出名: well-known for sth, to become well known, to make one's mark, to lend one's name (to an event, endeavor etc)...
阶层: hierarchy, stratum, social class...
如果说: if, if one were to say...
搏斗: to wrestle, to fight, to struggle...
