该项研究结果在三月九日发行的美国医学会杂志报道。
Results of the study are published in the March 9 issue of the Journal of the American Medical Association.
今年是芭比的五十岁生日，这个玩具第一次出现在纽约玩具展上，是在1959年三月九日。
This year is the fiftieth birthday of Barbie. The doll first appeared at the toy fair in New York on March ninth, nineteen fifty-nine.
如果在二月九日前后四天里，你没有得到任何消息、动态，三月九日前后四天内你会听到些事情。
If you didn't see any news or developments within four days of February 9, you might hear something this month, on or near March 9.
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