Class,please stand up Hello,class

class,please stand up hello,class. class,please stand up.Hello,class Class,please stand up Hello,class class,please stand up up,please,class,stand 连词组句 please don't stand up in class until you_______. please don't stand up in class until you are told to stand up,please是什么意思 In our class,you don‘t have to stand up to answer question u "please stand up please stand up"是阿姆哪首歌的歌词? class Stand up,please同义句