YOU SAID:

A great cause of the night is lack of the sun.

INTO JAPANESE

夜になる大きな原因は太陽の不足です。

BACK INTO ENGLISH

The main reason for nightfall is lack of sunlight.

INTO JAPANESE

日暮れの主な原因は日光不足です。

BACK INTO ENGLISH

The main cause of nightfall is lack of sunlight.

INTO JAPANESE

日暮れの主な原因は日光不足です。

BACK INTO ENGLISH

The main cause of nightfall is lack of sunlight.