upstairs的意思有：“楼上的”、“楼上”、“二楼”、“二楼以上各层”、“在或向楼上”、“在或向上一层”。upstairs可作形容词、名词和副词三种词性，其复数形式为upstairs。
upstairs的中文意思及用法介绍
1、作为形容词时，意为楼上的。
例句：The cat belongs to the people who live upstairs.
这猫是楼上人家的。
She went upstairs to get dressed.
她上楼换衣服去了。
Marsani moved into the upstairs apartment.
马萨尼搬进了楼上的公寓里。
She heard a floorboard creak upstairs.
她听见楼上的地板发出嘎吱嘎吱的响声。
2、作为名词时，意为楼上;二楼;二楼以上各层。
例句：We've converted the upstairs into an office.
我们把楼上改成了办公室。
Together we went through the upstairs...
我们一起走过各层楼。
I send these flowers upstairs.
我把这些花送二楼。
The cat belongs to the people who live upstairs.
这猫是楼上人家的。
Lights were burning upstairs, but no one answered the door.
楼上亮着灯，但叫门没人回应。
3、作为副词时，意为在(或向)楼上;在(或向)上一层。
例句：He went upstairs and changed into fresh clothes...
他上楼换上干净衣服。
The restaurant is upstairs and consists of a large, open room...
饭店在楼上，有一个宽敞的开间。
We could hear loud bumps from upstairs where the children were playing.
我们能听到孩子们在楼上嬉戏的乒乓声。
We could hear the kids banging around upstairs.
我们能听到孩子们在楼上咚咚地跑来跑去。
