sac
Definition
A bag-shaped structure in the body that holds fluid or an organ, or a similar natural cavity.
中文 身体内盛装液体或器官的囊状结构，或类似的天然腔体。
Example
"The doctor examined the fluid-filled sac near the patient's knee."
A bag-shaped structure in the body that holds fluid or an organ, or a similar natural cavity.
中文 身体内盛装液体或器官的囊状结构，或类似的天然腔体。
"The doctor examined the fluid-filled sac near the patient's knee."