Hypothyroidism is often a result of an autoimmune condition known as Hashimoto's thyroiditis, in which the body's own immune cells attack and destroy the thyroid gland.

甲状腺机能减退常常是自身免疫状况的结果，称之为桥本甲状腺炎，该病中，身体自身的免疫细胞攻击并破坏甲状腺。

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These antibodies then mobilise the body's immune defences to attack and destroy the cells.

然后这些抗体驱动机体免疫系统攻击并破坏这些细胞。

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These antibodies then mobilise the body's immune defences to attack and destroy the cells.

BBC: Trial launched into neuroblastoma child cancer

War is the use of military force to attack another nation and damage or destroy its capability and will to resist.

FORBES: Putting 'We Are At Cyberwar' Rhetoric To Bed

As the enemy forces attacked with even greater ferocity, unleashing a barrage of rocket-propelled grenades and recoilless rifle rounds, Staff Sergeant Romesha identified the point of attack and directed air support to destroy over 30 enemy fighters.

WHITEHOUSE: The White House