a map on reduced scale 按比例缩小了的地图
reduce one's expenses 削减开支
reduce one's weight 减轻体重.

be reduced to the ranks 被贬为士兵
in reduced circumstances 落魄
reduce an argument to nothing [an absurdity] 证明一论点毫无意义[荒谬可笑].

reduce sb to skin and bones [a nervous wreck] 使某人瘦成皮包骨头 [神经极度衰弱].

reduce a statement to its simplest form 把陈述简化成最简单的形式
The unwritten customs were reduced to writing. 不成文的惯例被整理成了文本.

reduce an equation 约简方程序
reduce pounds to pence 把镑换算成辨士.

The police soon reduced the mob to order. 警察很快就制服了暴民并恢复了秩序
The rebels were reduced to submission. 反叛者被迫屈服了
We were reduced to silence [tears]. 我们这才恢复了肃静[被感动得掉下泪]
Misfortune reduced that poor woman to begging. 不幸的遭遇逼得那穷苦的女人不得不去讨饭.

reduce a rule to practice 把规则付诸实践.

No more, thanks, I'm reducing. 不要了,谢谢,我正在减肥.