piggy backing

• 背负式生产

piggy backing的英文翻译是什么意思，词典释义与在线翻译：

英英释义

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