當dang你ni口kou渴ke時shi你ni會hui通tong過guo窗chuang口kou購gou物wu或huo者zhe做zuo其qi他ta的de事shi情qing來lai買mai瓶ping水shui，但dan是shi手shou裏li拿na瓶ping水shui會hui對dui我wo們men做zuo其qi他ta的de事shi帶dai來lai不bu方fang便bian。法fa勒le的de設she計ji可ke以yi幫bang助zhu你ni避bi免mian很hen多duo這zhe樣yang的de麻ma煩fan
，通tong過guo使shi用yong這zhe個ge鳥niao型xing瓶ping帽mao將jiang它ta掛gua在zai你ni的de包bao上shang，瞧qiao，多duo麼me方fang便bian！