Reduce by ....



-The World Bank has ambitious goals for 2015
Reduce poverty and hunger by one-half
Achieve universal primary education
Reduce child and maternal mortality by two-thirds
Reduce by half the number of people without access to potable water
以上這些reduce by 數字,是怎樣理解,例如減少到剩下2/3或是,減少2/3..
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