Did you mean: kejian kexin keqin keyin kjin keen ?
氪 |
kè jīn | to make an in-app purchase in a game |
可 |
kě jìn | vigorously / to the utmost / to the best of one's ability |
课 |
kè jīn | tax levied on a conquered people by an army / fee for a divination session / variant of 氪金, in-app purchase (gaming) |