The government had retreated from its pledge to reduce class sizes.

政府已经改变了缩小班级规模的承诺。

《牛津词典》

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He says a dense, competitive crop that quickly shades the soil from the sun will help reduce weed growth.

VOA: special.2011.07.26

Well, you can see you're going to be dividing not by a hundred here, but by a hundred times a hundred, so it's going to reduce this from .04 to .004.

你可以看出,这儿就不是除以100了,而是除以100*100了,这里就从0.04降到了0.004

耶鲁公开课 - 金融市场课程节选

Plus, it removes unnecessary cars from the road, which of course will reduce pollution.

另外，它减少了路面上多余的车辆，当然这样可以减轻污染。

地铁的好处 - SpeakingMax英语口语达人

The force's officer establishment is expected to reduce from 1, 727 to about 1, 400 by the end of next year.

BBC: Cleveland Police to lose 300 officers by 2014

The goal is to reduce from 70 days to 14 the average time between dealer order and delivery from Toyota's North American factories.

FORBES: Just in Time Meets Just Right

The number of officers across Cheshire will also reduce from 2, 060 to 1, 847 over the next four years through natural turnover of staff, the authority said.

BBC: Cheshire Police cuts could top 700 posts