YOU SAID:

integrated their all white high school in 1957.

INTO JAPANESE

彼らは1957年に全員白人高校を統合した。

BACK INTO ENGLISH

They all merged white high schools in 1957.

INTO JAPANESE

いずれも1957年に白人高校と合併した。

BACK INTO ENGLISH

Both were merged with Caucasian High School in 1957.

INTO JAPANESE

どちらも1957年に白人高校と合併した。

BACK INTO ENGLISH

Both merged with white high school in 1957.

INTO JAPANESE

両校は1957年に白人高校と合併した。

BACK INTO ENGLISH

Both schools merged with white high school in 1957.

INTO JAPANESE

両校は1957年に白人高校と合併した。

BACK INTO ENGLISH

Both schools merged with white high school in 1957.