4.20 ๋Œ€๋Š” ์—์…‹๋“ค์ด ๋ฒ„์ „์ด ์•ˆ์œ ํšจํ•œ๊ฑฐ๊ฐ™์€๋ฐ ๋ญ˜๋กœํ•ด์•ผ ํ˜ธํ™˜ ์ œ์ผ ์ž˜๋จ?