YOU SAID:

First, a test subject is placed in a sealed room with no lighting.

INTO JAPANESE

まず、被験者は照明のない密閉された部屋に置かれます。

BACK INTO ENGLISH

First, subjects are placed in a closed room with no lighting.

INTO JAPANESE

まず、被験者は照明のない密室に置かれます。

BACK INTO ENGLISH

First, the subject is placed in a closed room with no lighting.

INTO JAPANESE

まず、被験者は照明のない密室に置かれます。

BACK INTO ENGLISH

First, the subject is placed in a closed room with no lighting.