It's the one vaccine that you have to get three shots over a period of six months.

这种疫苗需要你在六个月里注射三次。

youdao

So you have, actually, a period of six months low rain, and for Somalia that is serious.

所以，这里的人们将面临六个月降雨量非常少的时间，索马里的情况非常严重。

youdao

The appointment of the Secretary-General may be postponed for a period of six months at any time.

理事会对秘书长的任命可在任何时候推迟六个月。

youdao

Volunteers received vaccinations over a period of six months and were tested for H.I.V.

VOA: special.2009.09.30

It's the one where you have to get three shots over a period of six months, and so you have to remember to go back, you get a first ba--you get a first shot, you have to remember to go back after a month and get a second shot, you have to go back after six months and get a third shot.

这种疫苗需要在六个月里注射三次,所以你要记得再去,你第一次,你第一次注射后,你要记得一个月后再去注射第二次,六个月后,你还得再去注射第三次

耶鲁公开课 - 生物医学工程探索课程节选

Volunteers received vaccinations over a period of six months.

VOA: special.2009.10.13

It analyzes consumers' past viewing habits over a period of six months to "learn" their preferences so that it can recommend similar content.

ENGADGET: Samsung, Flo Rida introduce massive Giga Sound MX-FS9000 speakers (update: hands-on video)

Over a period of six months the researchers alternated periods of electrical stimulation with fake stimulation to assess whether it was having an effect.

BBC: The electrodes were placed at specific points in the brain

The vaccine would be administered in boys and young men exactly as it's been given to girls and young women: three doses over a period of six months.

CNN: FDA panel urges HPV vaccine be given to boys