YOU SAID:

Matias is a good boy, but he needs to work on the hair

INTO JAPANESE

マティアスは良い男の子ですが、彼は髪の毛に取り組む必要があります

BACK INTO ENGLISH

Matthias is a nice boy, but he needs to tackle his hair

INTO JAPANESE

マティアスは素敵な男の子ですが、彼は自分の髪に取り組む必要があります

BACK INTO ENGLISH

Matthias is a nice boy, but he needs to tackle his hair