摘要： reduce vt.&vi. 减少,减缩 reduction n.缩减.减少.降低 [典例] 1). He reduced his weight from 98 to 92 kilos/by 6 kilos. 他把体重从98公斤减少到92公斤. 2). The reform has reduced us to servants of the State. 这一改革把我们都降为公务员了. [重点用法] reduce sth to... 把某物从--减少到-- reduce sth. by... 减少多少 [练习] 根据句子意思填入正确的介词. 1). We must reduce our expenses 300 yuan a month. 2). Their output has been reduced 10 percent. 3). He reduced his weight 6 kilos. Keys: 1). to 2). by 3). by

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