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 单词improving什么意思 to keep improving什么意思? isn't life 和isn't life...什么意思,还有isn't it. “isn't it nice?”什么意思? the phone isn't working什么意思 isn't 什么意思加分的 keeps improving through reforms什么意思 isn't的意思 It is't hers.It isn't his. 什么意思? isn't和aren't的意思有什么区别 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. It’s cold today,isn't it?什么意思 There isn't any bread in the kitchen什么意思 It isn't yours,it's mine什么意思