upadhyayBNC²³⁶²¹³⁺¹ 例句 “ A significant change happened after Tehri was built,” says chemical engineer S. N. Upadhyay, one of the first scientists to document the steady decline of the river's health. 化学工程师阿帕德海耶 Upadhyay是第一个用文件证明河流的健康在稳定下降的科学家之一，他说：“特赫里大坝建成后有了一个巨大的改变。” yeeyan