无疑: no doubt, undoubtedly...
打折: to give a discount...
收费: to charge a fee...
网上: online...
营业: to do business, to trade...
圈子: circle, ring, (social) circle...
高铁: high speed rail...
手头: on hand, at hand, one's financial situation...
山脉: mountain range...
主导: leading, dominant, prevailing, to lead, to direct, to dominate...
