please say hello to your mother for me.（请代我向你母亲问好。）i hope you re enjoying your staying here.（希望你在这里过得愉快。英语日常用语介绍，）what s up?（出什么事/你在忙些什么/怎么了？英语日常用语，））i m doing great.(我过得很好。...
