To Practice
You've hopefully seen 練習, which means "practice." So, if you make it into a verb, you have to practice.
れんしゅうする
The reading comes from the kanji as well as from the vocab word 練習. You should be able to read this!
昨日、肉って言葉の発音を六時間も練習したんだぜ。
I practiced pronouncing the word "meat" for six hours yesterday.
「おんをあだで返すような子に育てたおぼえはないよ！」というしばいのセリフを言うのを練習しています。
I'm practicing the line in the play that goes, "I didn't raise you to be such an ungrateful child!"
「俺達、惨敗しちまったな。」「ああ、惨敗しちまった。もっとたくさん練習しないとな。」
"Dude, we were absolutely crushed." "Yeah, it was a complete failure. I guess we need more practice."