So, that... (math set clanking) Just drop my math set, I hope I didn't break anything.
所以，那个… … （数学集叮当作响）把我的数学集放下， 希望我没有弄坏任何东西。
英语百科
Drop set
In bodybuilding and weight training, using drop sets is a technique for continuing an exercise with a lower weight once muscle failure has been achieved at a higher weight. It is most often performed on weight machines because reducing the weight quickly is thought by some to be extremely important, but it can also be performed with dumbbells and other free weights.