What's up? 你干什么呀？ What's up? 你干什么呀？
Nothin' much. Just getting ready to go to class. How 'bout you? 我没干什么。准备上课呢。你呢？
Me too! 我也是！
I'll call you back after class, k? 我下课之后再打给你，好吗？
K bye! 好的，拜拜！