He ploughed an acre in six hours .

他六小时犁一英亩地。

They ploughed fertilizer into the field .

他们把肥料犁到田地里。

Many protesters voiced doubts whether savings would be ploughed back into new infrastructure as promised .

许多抗议者质疑省下的资金是否将如政府承诺，被重新投入于基础设施建设中。

You shouldn 't walk over ploughed fields .

你不应该从耕过的田地上走。

But global investment started to pick up in 2003 as asian countries ploughed more money into infrastructure .

但由于亚洲各国将更多资金投入基建，全球投资在2003年又开始有所回升。