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

And developmental psychologists use many ingenious methods to try to pull these apart and try to figure out what are the basic components of human nature.

发展心理学家们使用了许多巧妙的方法,试图将这些因素分开,试图找出人性的基本成分,究竟是什么

耶鲁公开课 - 心理学导论课程节选

And developmental psychologists use many ingenious methods to try to pull these apart and try to figure out what are the basic components of human nature.

发展心理学家们使用了许多巧妙的方法,试图将这些因素分开,试图找出人性的基本成分,究竟是什么

耶鲁公开课 - 心理学导论课程节选