新泳衣帮助游泳者提高他们的表现。

The new suits help swimmers to improve their ___performance.

这位年轻球员的表现非常令人印象深刻，他在前10分钟内得了12分。

This was a very impressive ___performance by the young player, who scored 12 points within the first 10 minutes.

我做些练习以提高我在水中的表现。

I do some exercises in order to improve my ___performance in the water.