Atrioventricular
a. 房室的\\n[醫(yī)] 房室的
??? 情景例句
I promise I won't leave early.
我發(fā)誓我再也不會早走了。
I feel the same way.
我有同感。
It's about a time when there were black slaves in North America. It's about their fight for freedom.
（它）講的是有一段時期，北美洲存在黑奴。影片講述他們?yōu)樽杂啥窢幍那闆r。