n.中庭；天井；[解]心房
The reception was held in the atrium. 招待会在中庭举行。
To the west, three doors gave entry to the atrium. 在西边，有三扇门可以进入中庭。
How is access gained from the exterior into the atrium space? 从外部到天井该如何设置通路?
The right atrium receives deoxygenated blood from vena cava. 右心房接受从大静脉来的缺氧血液。
