Question supplement:
The paragraph is like this
The little birds fly over,
And oh, how sweet they sing!< /p>
To tell the happy children
That once again't is Spring.
It is a section of a poem
I said it was a poem earlier That’s no problem,
I’ve even read a few,
The language of poetry, for the sake of syllables and rhymes, makes the words more vivid.
That once again 't is Spring.
=That once again it is Spring.
Because of the syllable relationship, it is abbreviated
I told you it was a poem.
again't I have never seen it after studying English for N years.
However, if it is in the genuine book, it should be there.
again not
That once again in not Spring.
It is not spring.
English is very flexible. When you see n, you can omit not. I have seen several , However, foreigners use English so flexibly, so I’m always not used to it.