Thirty minutes a day in the early elementary years and an hour in grades four, five, and six is standard, says Rosemond.
罗斯蒙德说,低年级的标准是每天30分钟,四、五、六年级的标准是每天1小时。
Forty-five percent exercise four to six times a week.
45%的人每周锻炼4到6次。
A sudden loss of heart working will lead to brain damage within four to six minutes and then death after another five minutes.
心脏功能的突然丧失将在四至六分钟内导致大脑损害,然后五分钟后死亡。
It has a six hundred twenty-four cubic centimeter, thirty-five horsepower, gas-powered engine.
VOA: special.2009.03.28
It's great idea with a lot of hard work and then you work at it for year, two years, three years, four years, five years, six years, seven years, eight, nine, 10.
勤奋的工作,一年两年,三年,有或者更多,甚至10年,是很好的想法。
One, two, three, four, five, one, two, three, four, five, six, seven, eight, right, one, two, three, four, five, six, seven, eight.
一,二,三,四,五,一,二,三,四,五,六,七,八,正好,一,二,三,四,五,六,七,八。
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