pleuron

例句：

1. 1. 胸腺
   动物的免疫系统的一部分
2. 2. 胸腺瘤
   一种良性肿瘤，起源于胸腺
3. 3. 胸腺炎
   胸腺发炎的疾病
4. 1. The thymus is responsible for producing T cells, which are essential for immunity.
   胸腺负责产生T细胞，这是免疫系统所必需的。
5. 2. A thyroid nodule was found during a routine medical check-up.
   在常规体检中发现了一个甲状腺结节。
6. 3.Thyroid cancer is the most common type of cancer in women over the age of 40.
   甲状腺癌是40岁以上女性最常见的癌症类型。