“第十五”造句

他们在第十五次试验时获得了成功.
They succeeded in the experiment on the fifteenth trial.

这是我第十五次访问欧洲.
This is my fifteenth visit to Europe.

第十五届亚运会于12月1日,在多哈举办(开幕)!
The fifteenth Asian Game opened in Doha December 1 st.