Boys may delay their sisters from becoming women and from having sex, new findings from Australia suggest.　　

男孩的存在可能會(huì)推遲自己姐妹變成女人以及發(fā)生性關(guān)系的時(shí)間，澳大利亞科學(xué)家的最新研究表明。

The presence of older brothers seemed to delay the onset of menstruation of girls by nearly a year on average, and having younger brothers seemed to postpone the beginning of sexual activity in women by slightly more than a year, scientists found after interviewing 273 Australians

科學(xué)家在調(diào)查訪問了273名澳大利亞人后發(fā)現(xiàn)，哥哥的存在會(huì)讓女孩子們的月經(jīng)初潮平均晚來一年，而弟弟的存在則會(huì)使女孩初次發(fā)生性行為的時(shí)間推遲一年以上。

來源:可可英語 http://www.ccdyzl.cn/read/201008/111802.shtml