"Kangkang, are you calling me stupid?" Asked Su Xiaoning. Kang Xin smiled cheerfully: "No, my little Ningning, that is the most lovely little Ningning, hey, well, I don't talk to y...

As soon as Frey's words came out, Ji Yifeng and Yexin's faces changed greatly at the same time. Yexin said anxiously, "Lei Di, do you dare to announce your personal revenge?" Frey...

The physics of the propagation of sound is immensely complicated, and when the assortment of materials that make up the walls, floors and ceiling (plus any windows, doors and furni...