" Excellent! " cried Professor Lupin as the class broke into applause.

“太妙了! ”卢平教授叫道，这时全班鼓起掌来。

The class broke out in laughter along with the teacher.

全班都和老师一起笑了起来。

Financing the Tread for $150 per month, or $110 if you already own a bike, plus the $39 subscription fee for classes, breaks down to either $74.50 or $94.50 per person when split between two people.

买一台Tread跑步机平均下来是150美元/月，已经买过Peloton的动感单车的话才110美元/月，加上39美元的课程订阅费，两人均摊的话才74.50美元/月或者94.50美元/月。