肾形的

例句：

1. 1.The kidney is responsible for filtering waste products from the blood.
   肾脏负责过滤血液中的废物。
2. 2.The kidneys are located in the lower back and help to regulate blood pressure.
   肾脏位于背部下方，有助于调节血压。
3. 3.Kidney stones can cause severe pain and discomfort during their formation.
   肾结石在形成过程中会引起剧烈的疼痛和不适。