But the clipping, the abbreviated form, is very recent - I've only heard that since the 1980s.

但是，这个词的缩略形式却是最近才有的，是从20世纪80年代才开始被使用的。

I would say in general that there's a trend to get rid of the period after the letters in an abbreviated form of a word.

我想说的是，一般来说，有一种趋势是在单词的缩写形式中去掉字母后的句号。

This practice of recording one's days on limited pages, familiarized people with regular abbreviated forms of writing about themselves, the foundation of modern journaling.

这种在有限的页面上记录自己一天的做法使人们熟悉了有关自己的常规缩写形式，这是现代日记的基础。

So, " I was" , and if we follow the abbreviated form here, " I wasn't" , " I wasn't invited to -" oh, then we can mention Jack, if you like, " to the party" , or " to Jack's party" .

所以，“I was” ，如果我们在这里使用缩写形式，“I wasn't” ，“I wasn't invited to-” 哦，如果你愿意， 我们可以提到杰克，“参加聚会” ，或“参加杰克的聚会” 。