The use of new materials could reduce unit cost by 10%.

利用新原料可以使单位成本降低10%。

The use of new materials could reduce unit cost by 10%.

利用新原料可以使单位成本降低10%。

Maybe that's a good method.

也许这是个好方法。

Production of computers has doubled in the last few weeks.

近几周来电脑的产量增加了一倍。

Production of computers has doubled in the last few weeks.

近几周电脑的产量增加了一倍。

How about the sale?

销售情况怎么样?