gland

/glænd/

any of various organs that synthesize substances needed by the body and release it through ducts or directly into the bloodstream

中文释义：腺；腺体

The thyroid gland regulates metabolism by releasing hormones into the bloodstream.

甲状腺通过释放激素到血液中来调节新陈代谢。

Sweat glands help cool the body when it gets too hot.

汗腺在身体过热时帮助降温。