用复印术,几小时内就能把一本书复印出来。
你可以在复印机上很快地复印出附加的几份练习。
You can quickly roll off some extra copies of the exercise on the duplicating machine .
你可以在复印机上很快地复印出附加的几份练习。
You can quickly roll off some extra copies of the exercise on the duplicating machine.
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