isn't improving什么意思

isn't improving什么意思 my Putonghua isn't improving.为什么用improving isn‘t什么意思 isn't life 和isn't life...什么意思,还有isn't it. isn't 什么意思加分的 “isn't it nice?”什么意思? the phone isn't working什么意思 isn't的意思 It is't hers.It isn't his. 什么意思? 对划线部分提问：I'm stressed out because my Mandaein isn't improving And I'm stressed out because my Putonghua isn't improving. There isn't any bread in the kitchen什么意思