问题补充：
段落是这样的
The little birds fly over,
And oh,how sweet they sing!
To tell the happy children
That once again't is Spring.
是一首诗歌的一段
早说是诗就没问题了,
偶还读过几本,
诗的语言,为了音节和韵律,用语更活的.
That once again't is Spring.
=That once again it is Spring.
因为音节关系,缩写了
早说是诗啊.
again't 偶学了N年英语还真没见过.
不过,如果正版书里有,就应该存在吧.
again not
That once again in not Spring.
又不是春天.
英语很灵活,见到n,就可以把not 省略,我到是见过几个,不过,英语,老外用的这么灵活,偶总是不太适应.