什么是单双数的概念简介：The bus has started to leave. Keshu, I'll take a nap first. Call me when the time comes. Li Yun said something, Cheng Keshu nodded, and she fell asleep leaning on Cheng Keshu's shoulder.
The bus has started to leave. Keshu, I'll take a nap first. Call me when the time comes. Li Yun said something, Cheng Keshu nodded, and she fell asleep leaning on Cheng Keshu's shoulder.
