我昨天买了一双新运动鞋。

I bought a new pair of ___trainers yesterday.

如果你没有步行靴，你可以就穿运动鞋。

If you haven't got walking boots, you can just wear ___trainers.

拉斐尔，我想我把我的运动鞋落在你家了。

Rafael, I think I have left my ___trainers at your house.