pig·gy·backBrE/ˈpɪɡibæk/NAmE/ˈpɪɡibæk/verbpresent simple - I / you / we / theypiggybackBrE/ˈpɪɡibæk/NAmE/ˈpɪɡibæk/present simple - he / she / itpiggybacksBrE/ˈpɪɡibæks/NAmE/ˈpɪɡibæks/past simplepiggybackedBrE/ˈpɪɡibækt/NAmE/ˈpɪɡibækt/past participlepiggybackedBrE/ˈpɪɡibækt/NAmE/ˈpɪɡibækt/ -ing formpiggybackingBrE/ˈpɪɡibækɪŋ/NAmE/ˈpɪɡibækɪŋ/●ˈpiggybackonsb/sthtousesththatalreadyexistsasasupportforyourownwork; tousealargerorganization, etc. foryourownadvantage利用;借助;攀附利用