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他的同学们正在绞尽脑汁地演算初等代数题.用英语怎么说？

他的同学们正在绞尽脑汁地演算初等代数题.

His classmates were labouring with elementary algebra.

相关词汇
his classmates were labouring with elementary algebra

his

pron. (he的所有格)他的，(he的物主代词)他的东西；det. 属于他的，用于名词前，自己的，指某人的，上帝的；

classmates

n. （同班）同学( classmate的名词复数 )，砚兄砚弟；

were

be的过去时复数和第二人称单数形式，有时代替 was,用于条件从句、动词 wish 之后等；

labouring

n. 劳动，操劳；

with

prep. 和，跟，随着，关于，和…一致；

elementary

adj. 基本的，初级的，[化]元素的，初等；

algebra

n. 代数学，代数；
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