For the sixth grades ,every hour of sleep above the 9.s hour

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For the sixth grades ,every hour of sleep above the 9.s hour average ____ the risk of being obese by 20 percent lower,在任务型阅读中,填那个reduced ,decresed ,答案是reduced

decrease 强调数目或使人不快之物的逐渐减少.
如:to decrease the number of working hours,to decrease traffic accidents.
The workmen want to decrease the number of working hours and increase pay.
工人要求减少工作时间而增加工资.
reduce 可以表示尺寸、数量、程度或强度的减少,词义引伸之后,可以表示地位、处境、状况的降低.如:to reduce the speed,to reduce household expense,to be reduced to tears,to be reduced to ashes.
This greatly reduced the speed of the ship ,for there was danger that if she travelled too quickly,this rudder would be torn away.
这大大减低了船速,因为如果它走得太快,这个舵会有被冲掉的危险.
reduce 的名词为reduction.
降低肥胖的这种风险,也就是改变这种状况,所以用reduce 而不是decrease减少

For the sixth grades ,every hour of sleep above the 9.s hour 英语翻译For the sixth graders,every hour of sleep above the 9.5- myth of the eight-hour sleep这篇BBC文章好么? every hour on the half Mary's mother cleans the room (for one hour) every day .对括号内 The students have an hour of homework every day.对an hour of I listen to the news for [ ] hour every morning. The rest of the students ( )the zoo for an hour. the students need to sleep eight hour every night这句话哪错啦? Man of the Hour 歌词英译汉：man of the hour man of the hour 中文歌词