thyroid

例句：

1. 1. Thyroid glands are responsible for producing hormones that regulate metabolism.
   甲状腺腺体负责产生调节新陈代谢的激素。
2. 2. Thyroid problems can lead to fatigue and weight gain.
   甲状腺问题可能导致疲劳和体重增加。
3. 3. The thyroid is an important part of the endocrine system.
   甲状腺是内分泌系统的一个重要部分。