熱中ねっちゅう
necchū

Noun
Suru Verb

1. being enthusiastic about; being wild about; being absorbed in; being engrossed in; being devoted to

Intransitive
このごろ彼女かのじょはテニスに熱中ねっちゅうしている。
kono korowa kanojowa tenisuni necchū shite iru.
Nowadays she is lost in tennis.