pick-a-back
/ˈpɪkəbæk; `pɪkəˌbæk/ (also piggyback/ ˈpɪgɪbæk; `pɪɡɪˌbæk/) adv on the shoulders or back like a bundle 在背上; 在肩上
carry a child pick-a-back 背著孩子. pick-a-back (also piggyback), n ride on a person's back 骑在某人背上
Her father gave her a pick-a-back (ride) for the last bit of the journey. 在最後的一段路程上她父亲背著她走.