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It's about three meters long, and it took about four years to develop the model.

它大约有三米长，开发这个模型花了大约四年的时间。

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During the following three years, Zhang Yu made great efforts to study and took an active part in different activities to develop her abilities with the help of Li Qiang.

在接下来的三年里，张宇在李强的帮助下，努力学习，积极参加各种活动，锻炼自己的能力。

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However,experts say women are three times more likely to develop depression in reaction to the stress in their lives.

VOA: special.2009.03.24

Last week,Harvard University researchers reported that people who travel are three times more likely than others to develop deep vein thrombosis.

VOA: special.2009.07.14

Maya Lin worked with ocean scientists to develop a three dimensional image of this part of the ocean.

VOA: special.2009.05.06

The watch took three years to develop and, like the RM 001, was finished a year behind schedule.

FORBES: Magazine Article

In contrast, blockbuster titles need two or three years to develop and cost millions of pounds to bring to market.

BBC: Video games industry: Rise of the 'bedroom' developer

Tim Conway, Industry Affairs Director at trade body Intellect, told Computing magazine that even the most basic of cards would take three years to develop.

BBC: Technology trips smart card plans