Cases of purportedly sterilised women becoming pregnant had recently become more common.那些据称已绝育的妇女怀孕的情况最近变得更常见了。He was given a letter purportedly signed by the Prime Minister.他得到了一封据称有首相签名的信。The study purportedly found that men married to smart women live longer.这些研究声称娶了聪明女人的男人寿命较长。