Schools need to reduce levels of truancy.
学校需要减少旷课人数。
Improvements of working conditions helped to reduce levels of absenteeism.
工作条件的改善已令旷工率降低。
First, it poured industrial quantities of lime (pulverised limestone or chalk) onto the soil to reduce levels of acidity.
首先,撒入大量石灰(石灰或是石粉)来降低土壤酸性。
Building owners say such make-overs are very important to reduce levels of greenhouse gases in New York.
VOA: special.2009.05.22
the United States announced a target to reduce its emissions by 17% below 2005 levels in 2020.
美国宣布了到2020年实现在2005年的水平基础上减排17%的目标。
All of these things combined help to improve heart activity, lower blood pressure and cholesterol levels, and reduce bone and muscle loss.
VOA: special.2010.06.08
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