YOU SAID:

I'd feel more at ease if there was at least one agent left on the premises.

INTO JAPANESE

敷地内にエージェントが1人以上残っていれば安心です。

BACK INTO ENGLISH

It is safe if there is at least one agent left on the premises.

INTO JAPANESE

敷地内に少なくとも1人のエージェントが残っていれば安全です。

BACK INTO ENGLISH

It is safe if there is at least one agent left on the premises.