Vocabulary consisting only from characters you are able to read
詰まる
cumaru
(1)to be blocked, to be packed, (2)to hit the ball near the handle of the bat (baseball) godan, jlpt3, verb, vintrans
成る
naru
(1)(uk) to become, to get, to grow, to be, to reach, to attain, (2)to result in, to prove to be, (3)to consist of, to be composed of, (4)to succeed, to be complete, (5)to change into, to be excha godan, verb, vintrans
少しずつ
sukošizucu
little by littlemix