I'm currently reading a children's book about numbers with sentences of the form:
numberは j1 j2
where j1
and j2
are japanese words and j1
starts sounding similar to number
.
I am stuck with
4は [シュワー]{しゅわー}っと しんかんせん
where the "ー" is 4 times the expected size and yes, after it comes hiragana. I figure it means "4 stands for x shinkansens" as the page shows a picture of 4 smiling electric trains that are sorted by size.
However, I can not find a translation for シュワーっと, exept for シュワシュワ ~ bubliness
. But I don't see sense in that.
Could it be an onomatopoeia = describing a sound? Also, why use 2 alphabets?