would has been done是什么时态

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标签: 时态 什么 would been

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摘要:

  The company has been investing in new plant and equipment.  这家公司一直在投资购置新机器和设备。  A new system has been devised to control traffic in the city.  控制城市交通的新系统已经设计出来。  Digital television has been around for some ti……

  The company has been investing in new plant and equipment.

  这家公司一直在投资购置新机器和设备。

  A new system has been devised to control traffic in the city.

  控制城市交通的新系统已经设计出来。

  Digital television has been around for some time now.

  数字电视已经面市一段时间了。

  The problem is to get it all done in the time available.

  问题是要在现有的时间内把它全部完成。

  This is the way we've always done it.

  我们一直是这样干的。