YOU SAID:

By the 1930s, it was clear that aircraft would play an essential role in future conflicts.

INTO JAPANESE

1930 年代までに、航空機が将来の紛争で重要な役割を果たすことは明らかでした。

BACK INTO ENGLISH

By the 1930s, it was clear that aircraft would play an important role in future conflicts.

INTO JAPANESE

1930 年代までに、航空機が将来の紛争で重要な役割を果たすことは明らかでした。

BACK INTO ENGLISH

By the 1930s, it was clear that aircraft would play an important role in future conflicts.