bladder/ˈblædə(r); `blædɚ/ n1 bag made of membrane in which urine collects in human and animal bodies 膀胱.2 similar bag that can be inflated for various uses (eg the rubber lining of a football) （任何可充气的）囊状物（如足球内的橡皮球胆）.
牛津英汉双解词典