youdao
At the bottom of the basket, lay three microfilms, each in a metal case.
篮子的最下面，放着三个缩微胶卷，每卷都用金属外壳装着。
Microfilms might even take over from the libraries one day.
缩微胶卷甚至可能有朝一日取代图书馆。
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