n.(名词)

1. [C]膀胱a bag of skin inside the body of a person or animal,in which waste liquid collects before it is passed out
2. [C]囊，袋a bag of skin,leather,or rubber which can be filled with air or liquid

vesican.囊；膀胱；鱼鳔

1. The urethra originates at the neck of the bladder.
   尿道起始于膀胱颈部。
2. I'm going to do bladder irrigation for you.
   我要给您做膀胱冲洗。
3. The bladder is thin-walled and closed by a one-way valve.
   浮囊具有薄壁的结构并且通过单方向的阀门关闭。
4. The bladder is lined with small pouches that allow it to stretch as it fills.
   膀胱两侧布满小囊，使得膀胱可以充盈伸展。