YOU SAID:

don't tell me the sky's the limit when we've been to the moon

INTO JAPANESE

月に行った時の空の限界を教えてくれないで

BACK INTO ENGLISH

Don't tell me the limits of the sky when I go to the moon.

INTO JAPANESE

私が月に行くとき、私に空の限界を教えてはいけません。

BACK INTO ENGLISH

Don't tell me the limits of the sky when I go to the moon.