They collaborated on building the first space coffee machine.
他们合作建造了第一台太空咖啡机。
He and his brother collaborated on a book about aero-planes.
他和他兄弟合写了一本关于飞机的书。
This is how many open source projects have been collaborated on for several years.
这就是许多开源项目过去很多年的合作方式。
We have collaborated closely with the university on this project.
我们与大学在这个项目上紧密合作。
We have collaborated closely with the university on this project.
我们与大学在这个专案上紧密合作。
We have collaborated closely with the university on this project.
我们与大学在这个专案上紧密合作。
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