I would like to make my baby's head rounder by using a molding helmet.
I would like you to round out the back of my baby's head.
①I would like to correct my baby's head shape.
→ 赤ちゃんの頭の形を治したいです。
②I would like to make my baby's head rounder by using a molding helmet.
→ モデリングヘルメットを使って、赤ちゃんの頭をもっと丸い形にしたいです。
③I would like you to round out the back of my baby's head.
→赤ちゃんの後頭部を丸い形にしてほしいです。
I'd like for the back of my baby's head to be round
I'd like the back of my baby's head to be round, and I'm interested in knowing if a remolding helmet would be the best option for him/her.
後頭部=the back of his/her head
○○を丸い形にしてほしい=to want ○○ to be round
I want the back of his/her head to be roundを言うと~ちょっとだけ~赤ちゃんが物みたいなニュアンスです。I'd like for the back of my baby's head to be roundにしました。
,and I'm interested in knowing if a remolding helmet would be the best option for him/her.をつけると、より自然な会話の始まりになると思います。
ご参考になれば幸いです！
アメリカ合衆国 
