In 2014 a 30-second commercial during the Super Bowl cost an average four million dollars.

2014年，超级碗比赛期间，30秒的广告平均花费400万美元。

Using a clothes line can actually save the average household several hundred dollars a year.

通过使用晒衣绳，平均每年可以节省数百美金。

President Raul Castro admitted last year that doctors are badly paid earning an average 20 dollars a month.

总统劳尔·卡斯特罗去年承认医生每月收入20美元确实比较惨淡。

That's likely because regular gas is on average more than four dollars a gallon this month, the highest of any month in history, up from $2.51 in March of 2019.

这可能是因为本月普通汽油的平均价格超过了每加仑4美元，是历史上价格最高的月份，高于2019年3月的2.51美元。