The calculations are not perfect, so New Horizons has also fired its thrusters nine times during the nine and a half years for small course corrections, most recently two weeks ago.
计算是不完美的，因此在九年半的时间里，“新视野号”还曾九次点燃推动器，进行小的航向修正。距今最近的一次发生在两周前。
The research has taken six years, involved nine research institutes, and examined more than half a million publications-which were whittled down to 7,000 relevant ones.
这项研究花了6年时间，有9家研究机构参与，参考了50多万份的文献——又经过筛选减少到7000种与研究相关的。
The research has taken six years, involved nine research institutes, and examined more than half a million publications-which were whittled down to 7, 000 relevant ones.
这一研究有九家研究机构共同进行了六年时间，共浏览了多于五十万份出版物，从中选出了相关的七千份进行研究。
I thought it was going to take me between six and nine months to get the job done. It took seven and a half years and was finally published by Prentice Hall in 1990.
我本以为6到9个月就可以完成此书，结果我写了7年半，于1990年由普林·蒂斯·霍尔出版公司出版。
The researchers say all ten patients remain alive two and a half years after the treatment, and the disease has disappeared in nine of them.
研究人员称这十位病人在接受治疗后又存活了两年半。其中的九位痊愈了。
But we close Highbury on Sunday and I would never have thought when I arrived nine-and-a-half years ago I would do that.
但是我们将会在星期天告别海布里，这是我在九年半来到球队时没有预测到的。
But we close Highbury on Sunday and I would never have thought when I arrived nine-and-a-half years ago I would do that.
但是我们将会在星期天告别海布里，这是我在九年半来到球队时没有预测到的。
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