His classmates were labouring with elementary algebra.
他的同学们正在绞尽脑汁地演算初

题。
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季 " We believe that Aryabhata was the first to assign zero as a digit, a revolutionary concept, which simplified mathematical computations and helped evolve more complex avenues such as algebra and calculus, " said Anuradha Mitra, a Kolkata-based professor of mathematics.
“我们相信阿耶·巴塔是第
个将零作

赋值的人,这是
个革命性的概念,简化了
学计算,有助于发展更复杂的领域,比如
和微积分,”加尔各答的
学教授阿努拉达·米特拉说道。
大学英语精读(第2版)第四册