But the reactor's second unscheduled shutdown in as many years left health officials in Canada and the United States scrambling to find alternative sources of the isotope.

然而，在同样长的时间里反应堆再次意外罢工，令加拿大和美国的卫生部门官员们不得不匆匆寻找同位素的替代来源。

youdao

But the reactor's second unscheduled shutdown in as many years left health officials in Canada and the United States scrambling to find alternative sources of the isotope.

然而，在同样长的时间里反应堆再次意外罢工，令加拿大和美国的卫生部门官员们不得不匆匆寻找同位素的替代来源。

youdao