single-wheel barrow

例句：

1. 1. He used to carry groceries in a single-wheel barrow on his back.
   他过去常背着一个单轮手推车搬运杂货。
2. 2.The old man was using his single-wheel barrow to transport firewood from the woods to the house.
   那位老人正用他的单轮手推车把木头从树林运到房子里。
3. 3. The children were playing with their single-wheel barrows in the park.
   孩子们在公园里用他们的单轮手推车玩耍。