Air traffic contrl has been privatized.

The difficulty in measuring the effectiveness of a social service that has been privatized is one problem.

衡量私有化了的社会服务设施的效益并不容易，但这只是其中一个问题。

Traveling with the secretary of state is often a breeze.

和国务卿出访往往如沐春风.

Subjects included economics, climate change and North Korea's nuclear program.

出访主题包括经济 、 气候变化和朝鲜核问题.

I agree with the plan that she visit London this summer.

我同意她今年夏季出访伦敦.

We have been playing behind a version of the game.

我们一直在玩着落后美服、欧服、台服一年的游戏版本。

Not bad for a guy who's been playing on one good leg.

对于一个用一条好腿打球的人来说，这表现的真不错。

They said that they had been playing football.

他们说他们一直在踢足球。

The engine had been playing up

发动机一直有问题。

I've been playing the computer games since I got up this morning.

我从今天早上起来一直在玩电脑游戏。

He's been playing really well and got another goal.

他踢得很好，又进球了。

Textbooks have been playing an important role in teaching.

一向以来，教材在教师专业生活中占有重要地位。

English Phonetic Rhetoric has been playing an important part in English speech.

英语语音修辞在英语演讲中起着举足轻重的重要作用。

Nina had been playing the piano

尼娜一直都在弹钢琴。

' Obviously it was different to what I'd been playing before.

很明显我踢的足球和原来不同。

I have been playing around in this circle for four or five year.

我在这个圈子里混了四五年。

The mouse have been playing today; the cat is away.

家中无猫，老鼠闹翻天。

They've been playing that Chinese stuff all morning.

她们一早上都在忙乎中国人的那堆东西。

The kids have been playing with him for so long.

孩子们和它都玩了那么久了。

I've been playing football for a long time!

我踢球的时间可不短了！

Tom has been playing tennis as a professional for two years.

汤姆以职业网球运动员的身份打了两年网球了。