英语语法分析

Located near the base of the neck, the thyroid is a large endocrine gland that produces hormones that help control growth and metabolism.

甲状腺位于颈部的底部附近，是一个很大的内分泌腺体，它产生激素，协助控制生长和新陈代谢。

You may have a thyroid problem.

你的甲状腺可能有问题。

Iodine-131 can accumulate in thyroid and cause cancer.

碘- 131能在甲状腺累积并引发癌症。