3. A: Does he know us?
B: Yes, knows , but don't know .
A: Does he know us?
B: Yes, he knows us, but we don't know him.
A: ±×°¡ ¿ì¸®¸¦ ¾Ë¾Æ?
B: ÀÀ, ±×´Â ¿ì¸®¸¦ ¾ËÁö¸¸ ¿ì¸° ±×¸¦ ¸ô¶ó.