YOU SAID:
the dinosaur has trapped me under its teacup
INTO JAPANESE
恐竜は私を茶碗の下に閉じ込めた
BACK INTO ENGLISH
The dinosaur trapped me under a tea bowl
INTO JAPANESE
その恐竜は私を茶碗の下に閉じ込めた
BACK INTO ENGLISH
The dinosaur trapped me under a tea bowl
That didn't even make that much sense in English.