A two thousand five report from the World Health Organization advised waiting at least six months.

VOA: special.2010.08.11

I think for the past three months, I've only had five or six hours of sleep at night.

我觉得在过去三个月里，每晚我就睡5到6个小时。

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Now, you have to understand that when you buy a bond, if you buy it at issue, you get the first coupon in six months, the second coupon in one year, the third coupon in eighteen months, and the last coupon you get at the maturity date.

你们需要了解,如果在发行时就购入债券,六个月后会得到第一笔票息,一年后第二笔,18个月后第三笔,到期时得到最后一笔票息

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"A lot of these patients are at the highest risk of death and re-hospitalization and problems in the six months following discharge from the hospital."

VOA: standard.2010.03.07

The U.S.economy grew at a faster than expected rate at the end of 2009, up nearly six percent in the last three months of the year.

VOA: standard.2010.03.02