YOU SAID:

Inflating a large balloon is very difficult

INTO JAPANESE

風船をふくらますことは非常に困難

BACK INTO ENGLISH

Blow up a balloon that is very difficult

INTO JAPANESE

非常に難しいバルーンを爆破します。

BACK INTO ENGLISH

Blow up the balloon very difficult.

INTO JAPANESE

非常に困難の風船を爆破します。

BACK INTO ENGLISH

Blow up the balloon very difficult.