up用作形容词：
1、起床的
Are you sure you should be up?
你肯定你该起床了吗？
2、结束的，用完的，到点的
The moment the half-hour was up, Brooks rose.
半个小时一到，布鲁克斯便起来了。
3、正在整修的
Half the road was up in Leadenhall Street, so their taxi was obliged to make a detour.
半条利德霍尔街都在修路，他们的出租车只好绕道走。
4、向上的.，上升的，涨的
The scene is now set for a long term up-trend.
从当前情况看来，将迎来一波长期涨势。
up用作副词：
1、向上
Intense balls of flame rose up into the sky.
炽热的火球冲上天空。
2、在上面，在高处
There's a research station perched 4000 metres up on the lip of the crater.
有个研究站坐落在海拔4,000米的火山口附近。
3、起床，起来
He stood up and went to the window.
他起身走向窗户。
4、向（或在）地势更高处
He was living up North.
他当时住在北部。
5、往，朝
The girl ran the rest of the way across the street and up to the car.
那个女孩开始跑起来，一路跑到街对面的汽车旁边。