副词
1. upstairs
1. The plane tried to avoid a storm by going upstairs.
飞机往高空飞去,以避开风暴。
2.
2. She ran upstairs.
她往楼上跑去。
3. He is all vacant upstairs.
他头脑里空空如也。
形容词
1. Neighbors watched from their upstairs windows.
邻居们从他们楼上的窗户往外看。
名词
1. They had to rent out the upstairs to make mortgage payments.
他们不得不将二楼租出去以偿付抵押借款。