YOU SAID:

the trophy does not fit in the brown suitcase because it is too big.

INTO JAPANESE

トロフィーが大きすぎるため、茶色のスーツケースに収まりません。

BACK INTO ENGLISH

The trophy is too big to fit in a brown suitcase.

INTO JAPANESE

そのトロフィーは大きすぎて茶色のスーツケースには収まりません。

BACK INTO ENGLISH

The trophy is too big to fit in a brown suitcase.