I'll be up to see you tomorrow.

我明天上来看你。

《柯林斯英汉双解大词典》

It's very quiet upstairs; they must be up to some mischief !

楼上很安静。他们一定在搞什么恶作剧。

《牛津词典》

"Strange," I thought."They must be up to something!"

“奇怪，”我想。“他们一定在搞什么鬼！”

youdao

U.S.Army Sergeant Jeremy Tormala, on his second tour of duty in Iraq, thought the elections gave a good indication that Iraqi forces will be up to the task.

VOA: standard.2010.03.08

Even though you'll see a whole bunch of constructs today and even throughout the course, you will find that there's often multiple ways to implement something, and it will be up to us to guide you toward better design and making in giving two different options the better choice as time passes.

即使今天乃至整个课程中,你们将了解到很多的结构，你将发现,这里有很多的方法来处理一些事情，这将引导你们做更好的设计,随着时间的推移，从两个不同的选择中,选择一个更好的。

哈佛公开课 - 计算机科学课程节选

but they won't be academically, kind of, up to par. They won't be up to snuff academically.

但是他们成绩上，有些，不达标。他们成绩上不行。

对于赞助入学的看法 - SpeakingMax英语口语达人

Jesuits, by tradition, are schooled in both so Pope Francis will be up to the job.

FORBES: Pope Francis: Jesuit to the Rescue

Which makes it sound as if he will not be up to the job.

ECONOMIST: European Commission

It would be up to Wales and Northern Ireland to decide whether to follow suit.

BBC: Plans for O-level-style exams to replace GCSEs