down.stairs
adv.(副词)Down the stairs:顺楼梯而下:例句:raced my friend downstairs.往楼下追我朋友
To or on a lower floor:向楼下或在楼下:例句:went downstairs to answer the front door.下楼去开前门
adj.also (形容词) 也作 downstair
Located on a lower or main floor.在低层楼或底楼的n.(名词)
The lower or main floor.低层楼或底楼