是否4个月就可以比个B饮拉? <a href="http://foot.ci123.com" target="_blank" ><img alt="小脚印 - 育儿网" src="http://foot.ci123.com/images/pic/100/e08a04509455f3b8baa6b04a739d2f59.pn" border="0" width="480" height="80"/></a>