5 Dollars a Day 五美元过一天
He ate at least 5 meals a day including much junk food.
他每天至少吃五顿饭，包括很多垃圾食品。
Life expectancy is increasing at 2 years for every decade, that means an extra 5 hours a day.
人类平均寿命每10年会增加2年，这意味着每天会多出来5个小时。
Workers on part-time contracts who only work 4 to 5 hours a day are happier than those who work full time.
那些每天只工作4到5个小时的兼职员工比全职员工更快乐。
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