come up主要有以下几个用法。
一、come up (to sb)，意为“走到跟前，走近，走上；来到”，一般目的是为了攀谈或做点什么，例如：
He came up to me in the club and asked if I would like to dance.
在俱乐部里，他走到我跟前，问我要不要跳舞。
He came up to me and asked for a light.
他走到我跟前来借火。
Her cat came up and rubbed itself against their legs...
她的猫跑上前来，在他们腿上蹭来蹭去。
Why don't you come up to Scotland for a few days?
你为何不上苏格兰来住几天？
It's a friendly place ─ people come up to you in the street and start talking.
这个地方的人很友好——在街上走着就有人上来跟你攀谈。
They had come up from London loaded down with six suitcases.
他们拖着6只箱子从伦敦过来。
He had insisted that she come up to Lawford for the Halloween party.
他执意要她来劳福德参加万圣节聚会。
二、意为“被提及，被讨论”，例如：
The subject came up during a pre-dinner drink with our guests.
在与客人喝餐前酒的时候，有人提到了这个话题。
Jeane Kirkpatrick's name has come up a lot.
珍妮·柯克帕特里克的名字被多次提到。
The subject came up in conversation.
谈话中提到了这个话题。
The question of what time to be there never came up.
关于什么时候到那里的问题从来没有被提过。
三、意为“（太阳）升起”，例如：
It will be so great watching the sun come up.
看着太阳冉冉升起将是十分美妙的事情。
We watched the sun come up.
我们观看了日出。
We'll leave as soon as the sun comes up.
太阳一出来我们就走。
四、意为“发生”，相当于 happen，通常是意外发生的；或突然发生,例如：
Setbacks keep coming up in our investigation.
我们的调查不断遇到挫折。
We'll let you know if any vacancies come up.
一有空缺，我们就会通知你。
其中 be coming up 用来表示很快要发生的，例如：
Her birthday is coming up soon.
她的生日即将来临。
My exams are coming up soon.
我快要考试了。
Plan your activities so that you are rested and refreshed when something important is coming up...
做好日常规划，这样一旦发生大事，才能够从容不迫。
I was delayed — something came up at home...
我耽搁了些时候——家里出了点事。
五、意为“马上好”，“准备好”“呈现，展示、提出、想出、弄出、做出、发现，找到”，例如：
A: Is dinner ready? 晚饭准备好了吗？
B: Coming up! 马上来！
How soon can you come up with the money?
你什么时候能拿出这笔钱？
What's our fallback if they don't come up with the money?
要是他们拿不出钱，我们如何应变？
If Warren can come up with the$ 15 million, we'll go to London.
如果沃伦能拿出那1500万美元，我们就去伦敦。
Dwayne has come up trumps with a goal worthy of winning any match.
德韦恩意外地蒙进了一个可以拿下任何比赛的球。
Half the fun of gardening is never knowing exactly what's going to come up.
园艺的最大乐趣是谁也不知道到底会长出什么。
Several of the members have come up with suggestions of their own.
有几位成员提出了自己的建议。
He urged the administration and Congress to come up with a credible package to reduce the budget deficit.
他敦促政府和国会出台一整套切实可行的方案，以缩减预算赤字。
Let's fingerprint the canoe, see if we come up with anything.
让我们提取一下独木舟上的指纹，看看能不能有什么发现。
No one has come up with a definitive answer as to why this should be so.
对于为什么应该是这样，还没有人想出最终确定的答案。
Keep your eye on these jokers, you never know what they will come up with.
留神那些活宝，你永远也不知道他们会想出什么样的主意。
The president was moved to come up with these suggestions after the hearings.
听证会促使总统想出了这些建议。
See if you can rework your schedule and come up with practical ways to reduce the number of hours you're on call.
看看能不能修改你的日程安排表，想出切实可行的办法来减少你值班的时间。
You would take things as they came. All you had to do was think a little harder and come up with a new solution.
既来之，则安之，你必须多动脑子，想出个新的解决方法来。
Howard Wilkinson has come up with an absolute corker of an idea.
霍华德·威尔金森想出了一个绝佳的主意。
I don't think he can come up with any clever move.
我看他也没有什么高招。
The minister criticised the police for failing to come up with any leads.
部长批评警方没能找到任何线索。
六、 (工作)出现空缺;(商品)上市
A research fellowship came up at Girton and I applied for it and got it...
格顿学院设立了一项研究奖学金，我提出申请并且成功获得。
七、(案件)开庭审理
He is one of the reservists who will plead not guilty when their cases come up.
案件开庭审理的时候，这些预备役军人不会认罪，他就是其中一个。
八、发芽
The seeds haven't sprouted [ come up] yet.
种子还没有发芽。