英语翻译One explanation is that women`s sense of smell developed

英语翻译
One explanation is that women`s sense of smell developed long age,and is linked torecognizing the smell of babies.
Scientists used to believe that mothers recognized their children by sight only .
Now,they have started to believe that the sense of smell also helps,but why pleasant smells do not reduce pain in men is a question still to be answered by scientists.
不要网站和机器那种直接翻译的
第一句话的torecognizing TO和recognizing 要分开
One explanation is that women`s sense of smell developed long age,and is linked to
recognizing the smell of babies.