Definition: to or on a lower floor of a building, especially the ground floor Level: A2
我匆忙下楼去查看邮件。
I hurried ___downstairs to check the mail.
听到噪音后，她下楼去查看。
After hearing a noise, she went ___downstairs to investigate.
我的卧室在楼上，但客厅在楼下。
My bedroom is upstairs, but the living room is ___downstairs.
