舞会上，他们优雅地跳了一支传统斯特拉斯佩舞。

At the ball, they danced gracefully to a traditional ___strathspey.

我们随着小提琴演奏的欢快斯特拉斯佩舞曲轻轻摇摆。

We swayed gently to the lively ___strathspey being played on the violin.