英语语法分析

Rarely, a struma ovarii can even be a cause for hyperthyroidism.

极少数情况下，卵巢甲状腺肿也可以由甲状腺机能亢进引起。

Other major rivers include the Struma and the Maritsa rivers in the south.

其他主要的河流包括南面的斯注玛河以及马里查河。

Objective To study the clinical and pathological features of struma ovary.

目的探讨卵巢甲状腺肿的临床和病理学特征。