1. 这目精确到小数点后三位数。
The number is correct to three decimal places.

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2. 我相信13这字不吉利。
I'm superstitious about the number 13.

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3. 107这用十六进制表示为6B。
The number 107 is represented in hexadecimal as 6B.

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4. 我还没有核对,但我想大概就是这
I haven't checked them off but I would say that's about the number.

《柯林斯英汉双解大词典》

5. 这些奶牛的臀部上标有它们主人姓名的首字母和一字。
The cows' rumps were marked with their owner's initials and a number.

《柯林斯英汉双解大词典》

6. 13%的美国人在65岁以上;这字预计到2030年会达到22%。
13% of Americans are over 65; this number is projected to reach 22% by the year 2030.

《柯林斯英汉双解大词典》

7. 将这字映射到罗马数字系统。
Map this number to the Roman numeral system.

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8. 在一些国家,这字要高得多。
For some countries, that number is a lot higher.

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9. 2009年,这字下降到了9%。
In 2009, the number dropped to 9%.

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10. 这字是二十年前的三倍。
That is triple the number from two decades ago.

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11. 从一至二十中挑选一个数
Pick a number from one to twenty.

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12. 这字将暂时增加2万。
The number will temporarily be increased by 20,000.

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13. 它仅仅是一字,对吗?
It's just a number, right?

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14. 两字脱颖而出。
Two numbers stand out.

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15. 这里有两字。
Here are two numbers.

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16. 我们也许要将这字往上调一调。
We may have to revise this figure upwards.

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17. 7千万美元这字是预计的两倍。
The figure of seventy-million dollars was twice as big as expected.

《柯林斯英汉双解大词典》

18. 她的电话号码跟我的差一字。
Her telephone number differs from mine by one digit.

《柯林斯英汉双解大词典》

19. 4、5、9三个数的平均数是6。
The average of 4, 5 and 9 is 6.

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20. 他从黑板上抹去了那字。
He removed the figure from the board.

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21. 这精确到小数点后两位。
The figure is accurate to two decimal places.

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22. 这字与去年同期的4%升幅相近。
This compares with a 4% increase for the same period last year.

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23. 这目一点也被没揭露。
Nothing about this sum has come to light.

《柯林斯英汉双解大词典》

24. 这值是用及其巧妙的方程解出来的。
This figure is reached by a fiendishly clever equation.

《柯林斯英汉双解大词典》

25. 25000这个数字被证实是过高的估计。
Twenty-five thousand turned out to be an overestimate.

《柯林斯英汉双解大词典》

26. 他用白板笔在海报大小的横幅上写了七字。
Using a Magic Marker, he wrote seven digits on the poster-size banner.

《柯林斯英汉双解大词典》

27. 我在页边做了个记号来提醒我核对一下这字。
I put a mark in the margin to remind me to check the figure.

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28. 美国国家航空航天局发现了其计算中的一学错误。
NASA discovered a mathematical error in its calculations.

《柯林斯英汉双解大词典》

29. 到 2004 年为止,这字已增长到 1 400 万。
By 2004, this figure had risen to 14 million.

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30. 一个医生平均一年仅为每个病人开大约七个处方;而德国是这个数字的两倍。
On average doctors write just over seven prescriptions each year per patient; in Germany it is double.

《柯林斯英汉双解大词典》