I ran downstairs to see if he had come home yet.
They were all downstairs.
They got in through a downstairs window.
Their kitchen was bigger than the whole of our downstairs.
英语词典包含67175条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。