YOU SAID:

I start school in nine days

INTO JAPANESE

9 日間で学校を開始します。

BACK INTO ENGLISH

9 days in the start the school.

INTO JAPANESE

学校開始の 9 日間。

BACK INTO ENGLISH

During the nine days of school.

INTO JAPANESE

学校の9日間。

BACK INTO ENGLISH

During the nine days of school.