乐队演奏着慢华尔兹舞曲。
The band played a slow waltz .
在之前的研究中，他们就已发现慢华尔兹和快华尔兹对心脏病及之前有过心脏病发作的患者，都是健康有效的运动形式。
In a previous study , the same researchers had found that slow and fast waltzes were safe and effective forms of exercise for people who suffered from heart disease and previous heart attacks .
慢华尔兹