thyroid
🇺🇸
/ˈθaɪrɔɪd/
🇬🇧
/ˈθaɪrɔɪd/
A gland in your neck that makes hormones to control your body's growth and how it works.
If you have an underactive thyroid, you might feel tired all the time.
如果你的甲狀腺功能低下,你可能會感到一直疲倦。