Scientists know that many chemicals including PAHs can cross the placenta, but they don't understand how they may interfere with a fetus' developing brain.
科学家知道许多化学物质包括多环芳烃能通过胎盘，但是他们不理解的是这些物质是如何渗入到胎儿发育的大脑中的。
Scientists know that many chemicals including PAHs can cross the placenta, but they don't understand how they may interfere with a fetus' developing brain.
科学家知道许多化学物质包括多环芳烃能通过胎盘，但是他们不理解的是这些物质是如何渗入到胎儿发育的大脑中的。
应用推荐