expression, ichidan verb
put effort into; do passionately; get fired up about
Used when someone puts energy, enthusiasm, or passion into an activity. Often implies a focused, heated effort.
See also: 熱 (ねつ)
彼は仕事に熱を入れている。
He puts a lot of effort into his work.
最近、ギターの
Lately, I've started putting passion into practicing guitar.