a mobile library

• 流动图书馆

a mobile library的用法和样例：

例句

1. The suggestion of making a circulating library was well received by all.
   大家都同意办个流动图书馆的建议。
2. The travelling library fulfils an important need for people who live far from the town.
   流动图书馆满足了在远离城市地方居住的人的需要。