lymph

例句：

1. 1. Lymph nodes are the first line of defense against infection.
   淋巴结是对抗感染的第一道防线。
2. 2. The doctor removed a lymph node to remove the cancerous growth.
   医生切除了一个淋巴结以去除癌性生长。
3. 3. Lymphedema is a condition where the lymphatic system is blocked, causing swelling and pain in the affected area.
   淋巴水肿是一种情况，其中淋巴系统被阻塞，导致受影响区域的肿胀和疼痛。