我们专营上述业务。许多年前，我们同你们国家就上述商品做过大笔交易。Weare_______theabovebusinessandrecallthatmanyyearsago,considerablebusinesswasdone________onsuchitems.
我们专营上述业务。许多年前，我们同你们国家就上述商品做过大笔交易。Weare_______theabovebusinessandrecallthatmanyyearsago,considerablebusinesswasdone________onsuchitems.
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