piggybacked的翻译，读音
英/ˈpɪgi:ˌbækt/
释义：
v. 背着, 肩驮( piggyback的过去式和过去分词 )
v ride on someone's shoulders or back
v haul truck trailers loaded with commodities on railroad cars
v haul by railroad car
v support on the back and shoulders
v bring into alignment with
v ride on someone's shoulders or back
v haul truck trailers loaded with commodities on railroad cars
v haul by railroad car
v support on the back and shoulders
v bring into alignment with