piggy backing

英 美
  • 背负式生产
  • backing n.支持;背衬;伴奏动词back的现在分词.
  • piggy n.小猪adj.贪心的
动词 piggyback:
  1. ride on someone's shoulders or back

  2. haul truck trailers loaded with commodities on railroad cars

  3. haul by railroad car

  4. support on the back and shoulders

  5. bring into alignment with