题目内容：

Sunday and Monday and Tuesday and Wednesday and Thursday and Friday and Saturday这些英语单词的缩写形式
还有：There are ( ) daye in a week
( ) is the first day in a wekk
( ) in the last day in a week

优质解答

Sun.
Mon.
Tus.
Wed.
Thu.
Fri.
Sat.
就是每个单词开头三个字母再加一个点