That said, whenever you choose to do it, make sure you use one of these condoms.

这意味着，当你选择做那件事时，请先确定戴上套子。

youdao

Of these, around 4.4 billion condoms were used for family planning and 6.0 billion condoms for HIV prevention.28.

这其中约有4.4亿被用在家庭计划中，约6亿被用来预防HIV感染。

youdao

And without a vaccine, Dr.Fauci says the best methods of prevention are these: encourage people to limit the numbers of sexual partners encourage men to use condoms train more doctors to perform adult male circumcision empower women to choose their sex partners and protect themselves from getting the virus that causes AIDS All of these goals still remain major challenges.

VOA: standard.2010.07.17

These range from a youth organisation that taught army conscripts to use condoms to a beekeepers' association in the eastern province of Fergana.

ECONOMIST: Uzbekistan