在楼下

• below stairs
• downstairs
• belowstairs

例句

1. 他们在楼下等我们。
   They're waiting for us downstairs.
2. 她病了，在楼下的卧室里呆了一整天。
   She was ill and stayed in the downstairs bedroom for a whole day.
3. 有人在楼下吗？
   Is anyone downstairs?
4. 好！我在楼下等你。
   Fine! I'll wait for you downstairs.