YOU SAID:

I'd like to get two large coffees with a donut

INTO JAPANESE

ドーナツ入りの大きなコーヒーを2杯欲しいのですが

BACK INTO ENGLISH

I'd like two cups of big coffee with donuts

INTO JAPANESE

ドーナツ入りのビッグコーヒー2杯が欲しいのですが

BACK INTO ENGLISH

I'd like two cups of big coffee with donuts