YOU SAID:
What Trench are you talking about?
INTO JAPANESE
あなたはどのトレンチについて話しているのですか?
BACK INTO ENGLISH
Which trench are you talking about?
INTO JAPANESE
どの塹壕について話しているのですか?
BACK INTO ENGLISH
Which trench are you talking about?
That didn't even make that much sense in English.