Kira Kira

Kira kira is onomatopoeia for glitter, sparkle light of gems, glass etc.

i.e)
Jp: kono nekkuresu wa totemo KIRA KIRA siteiru.
　(このネックレスはとてもきらきらしている)
En: This necklace is glittering.

Koro koro

Koro koro is onomatopoeia of rolling things.
also used as noun for a cleaning sticky paper tape.

i.e)
Jp: Ringo ga sakamichi wo KORO KORO korogatteiru.
(りんごがさかみちをころこところがっている)
En: An Apple is rolling down on the down hill.

i.e)
Jp: KORO KORO de huku ni
tuita kami no ke wo totta.
(コロコロでふくについたかみのけをとった)
En: I took off hair on my cloths with a cleaning tape.



koro koro tape