YOU SAID:

my sandwich is so large it has a pair of wagons on it

INTO JAPANESE

私のサンドイッチはとても大きいので、ワゴンが二台も乗っています

BACK INTO ENGLISH

My sandwich is so big that there are two wagons on it.

INTO JAPANESE

私のサンドイッチはとても大きいので、ワゴンが 2 台積まれています。

BACK INTO ENGLISH

My sandwich is so big that two wagons are loaded.

INTO JAPANESE

私のサンドイッチはとても大きいのでワゴン2台分積めます。

BACK INTO ENGLISH

My sandwich is so big that it can fit two wagons.

INTO JAPANESE

私のサンドイッチはとても大きいので、ワゴンが 2 台入るほどです。

BACK INTO ENGLISH

My sandwich is so big that it can fit two wagons.