1 星期八 xingqiba -- a fictional section of a week,after the Saturday and before Monday,which show someone's ignorance or for fun(?表现某人的无知或当笑话)
2 donkey's days
3 I recognize I ever did many wrong things ,but now I do right things.
或My judgement in the past is false,but right nowwadays.（含义具有不确定性）.
4 My surname is Zhang in pinyin,dissimilar to a synonym -- also a susname.