If you are up, you are not in bed.
Are you sure you should be up?
你确定你该起床了吗?
These days they were up at the crack of dawn.
这些天他们在破晓时就起床。
If a period of time is up, it has come to an end.
The moment the half-hour was up, Brooks rose.
半小时一到,布鲁克斯就起来了。
If a computer or computer system is up, it is working. Compare down
The new system is up and ready to run.
新系统工作了,可以开始运行了。
If a person or thing goes up, they move away from the ground or to a higher position.
Finally, after an hour, I went up to Jeremy's room.
一个小时后,我终于上楼去了杰里米的房间。
Intense balls of flame rose up into the sky.
炙热的火球冲上天空。
If a person or thing is up, they are near the top of something.
a research station perched 4,000 metres up on the lip of the crater.
位于海拔4000米,靠近火山口的一个研究站。
You use up to indicate that you are looking or facing in a direction that is away from the ground or towards a higher level.
Keep your head up, and look around you from time to time.
你要抬起头来,不时地环顾四周。
If someone stands up, they move so that they are standing.
He stood up and went to the window.
他站了起来,走向窗户。
If you are travelling to a particular place, you can say that you are going up to that place, especially if you are going towards the north or to a higher level of land. If you are already in such a place, you can say that you are up there.
I'll be up to see you tomorrow.
我明天上来看你。
He was living up North.
他当时正住在北方。
If you go up to something or someone, you move to the place where they are and stop there.
The girl ran the rest of the way across the street and up to the car.
那个女孩穿过街道,跑完剩下的一段路,来到那辆车旁。
On the way out a boy of about ten came up on roller skates.
在出去的路上,一个大约十岁的男孩穿着旱冰鞋滑了过来。
If an amount of something goes up, it increases. If an amount of something is up, it has increased and is at a higher level than it was.
The total budget went up almost $300 million.
总预算几乎增加了3亿美元。
Tourism is up, jobs are up, individual income is up.
旅游火了,职位多了,个人收入增加了。
up and down
If you move up and down somewhere, you move there repeatedly in one direction and then in the opposite direction.
I used to jump up and down to keep warm.
我过去常常上下跳动来保暖。
I strolled up and down thoughtfully before calling a taxi.
我来回踱步,思来想去后叫了一辆出租车。
up to
If you feel up to doing something, you are well enough to do it.
Those patients who were up to it could move to the adjacent pool.
身体状况允许的病人可以去隔壁的游泳池。
His fellow directors were not up to running the business without him.
没有他,其他董事管理不好这家企业。
To be up to something means to be secretly doing something that you should not be doing.
Why did you need a room unless you were up to something?
除非你要捣什么鬼,不然为什么需要一个房间呢?
They must have known what their father was up to.
他们一定已经知道父亲暗地里在做什么。
If you say that it is up to someone to do something, you mean that it is their responsibility to do it.
It was up to him to make it right, no matter how long it took.
不管需要花多长时间,把事情摆平是他的责任。
I'm sure I'd have spotted him if it had been up to me.
要是换了我,我肯定已经认出他了。
You use up to to say how large something can be or what level it has reached.
Up to twenty thousand students paid between five and six thousand dollars.
多达2万名学生支付了5千到6千美元不等。
up until
Up until or up to are used to indicate the latest time at which something can happen, or the end of the period of time that you are referring to.
Please feel free to call me any time up until 9:30 at night.
晚上9:30之前随时都可以给我打电话。
up for
If someone or something is up for election, review, or discussion, they are about to be considered.
A third of the Senate and the entire House are up for re-election.
参议院三分之一的席位和众议院所有席位都面临改选。
If you are up for something, you are willing or eager to do it.
I'm starved. Who's up for pizza?
我快饿死了。谁想吃比萨饼?
up against
If you are up against something, you have a very difficult situation or problem to deal with.
The chairwoman is up against the greatest challenge to her position.
女主席正面临职位上的最大挑战。
up and about
If someone who has been in bed for some time, for example because they have been sick, is up and about, they are now out of bed and living their normal life.
How are you Lennox? Good to see you up and about.
你怎么样,伦诺克斯?真高兴看到你恢复正常活动了。
something is up
If you say that something is up, you mean that something is wrong or that something worrying is happening.
What is it then? Something's up, isn't it?
那么这是怎么回事?出问题了,是不是?
What's up?
If you say to someone 'What's up?' or if you tell them what's up, you are asking them or telling them what is wrong or what is worrying them.
'What's up?' I said to him. 'Just tired,' he answered.
“出了什么事?”我问他。— “只是累了,”他答道。
If a person or thing goes up something such as a slope, ladder, or chimney, they move away from the ground or to a higher position.
They were climbing up a narrow mountain road.
他们正沿着一条狭窄的山路往上爬。
I ran up the stairs and saw Alison lying at the top.
我跑上楼梯,看见艾莉森躺在那里。
If a person or thing is up something such as a ladder or a mountain, they are near the top of it.
He was up a ladder sawing off the tops of his apple trees.
他正站在梯子顶部锯苹果树的树冠。
If you go or look up something such as a road or river, you go or look along it. If you are up a road or river, you are somewhere along it.
A line of tanks came up the road from the city.
一排坦克由市里沿路开过来了。
We leaned on the wooden rail of the bridge and looked up the river.
我们靠在桥的木栏杆上,沿河望去。
ups , upping , upped
If you up something such as the amount of money you are offering for something, you increase it.
He upped his offer for the company.
他提高了对该公司的出价。
Drug stores upped sales by 63 per cent.
药店的销售额提高了63。
If you up and leave a place, you go away from it, often suddenly or unexpectedly.
One day he just upped and left.
有一天他突然离开了。