精选优质文档-倾情为你奉上考研英语:高频短语(四)strike off删去,除名strike while the iron is hot趁热打铁strike out独立创新路,开辟strike up开始(谈话,相识)strike in插嘴stumble across / on偶然遇到,碰巧找到stumble over / on sth.绊到某物上stumble along the road蹒跚而行stumble at / over a word说话结结巴巴a stumbling block绊脚石stumble across / on / upon sth. / sb偶尔遇到,找到某人,某物smash in击穿smash up撞碎smash the record打破记录from scratch冲零开始up to scratch合格without scratch完好无损,安然无恙scratch off / out刮掉,削去,檫去,删