Up until now it has been quite tedious and cumbersome to build rich GUI clients to interact with these systems.

直到现在，要构造一个界面友好的GUI客户端来与这些系统进行交互还是非常的单调乏味。

youdao

Now mash the bread until it soaks up all the water.

现在把面包捣碎，直到所有的水都被吸干为止。

youdao

Up until now, it was possible to run unit tests against your personal Twitter account without anybody knowing what you were up to.

到目前为止，可以在个人Twitter帐户上运行单元测试，而其他人并不知道您要干什么。

youdao

Up until now, it has been the perception, 'Oh,we got it from outside.'

VOA: standard.2010.07.07

Do you want to stand up and wait until Ale gets there, and really yell it out now.

站起来等着艾尔走过去,并且大声地告诉我们答案

耶鲁公开课 - 博弈论课程节选

And up until now it's just been waste.

CENTERFORSECURITYPOLICY: Center For Security Policy

Up until now it was very difficult.

CNN: STORY HIGHLIGHTS

Russia is seen as a key player, with influence in Damascus - up until now it has been a staunch ally of President Bashar al-Assad and has provided the Syrian leader with military support, reports the BBC's Steve Rosenberg in Moscow.

BBC: News - Philippines eyes Golan peacekeeper pull-out after abductions