到去年年底，这一比例已经升至69%。
到去年年底，我们看了三部英文影片。
截止到去年年底他已经完成了他的学业。
到去年年底，又有一座新体育馆峻工了。
By the end of last year, another new gym had been completed.
到去年年底为止，我们已学了一千个单词。
到去年年底，他们就完成了那个宏伟的工程。
By the end of last year, they had finished the great project.
到去年年底，他们已经在村里建了三所房子？
They had built three houses in their village by the end of the last year.
到去年年底为止，他们已看了三部英语电影。
到去年年底他已经在那家工厂工作了30年。
He had worked in that factory for thirty years by the end of last year.
到去年年底为止我们已生产出3000台电脑。
上海·春到去年年底，又有一座新体育馆峻工了。
By the end of last year, another new gymnasium had been completed. 2003.
到去年年底为止，我在这所大学工作已经有十年了。
By the end of last year, I had worked in this university for ten years.
截止到去年年底，我已经参观过七个不同的城市了。
By the end of last year, I had visited seven different cities.
到去年年底为止，我们已学会了1000英语单词。
到去年年底，我们已学习了大约2 000个英语单词。
By the end of last year we had learnt about 2,000 English words.
2003上海·春到去年年底，又有一座新体育馆峻工了。
By the end of last year, another new gymnasium had been completed.
2003上海·春到去年年底，又有一座新体育馆峻工了。
By the end of last year, another new gymnasium had been completed.
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