英法海底隧道是由法国和英国共同出资建造的。

The Channel Tunnel was ___jointly funded by the French and British.

Avesta 在与英国钢铁公司合并后，现在由瑞典人和英国人共同拥有。

Avesta is now ___jointly owned by Swedes and Englishmen after merging with British Steel.

他们决定共同研究这个项目。

They decided to work ___jointly on the research project.