隶属美国能源部的国家核安全局称，拆除最后一颗炸弹的工作比计划提前一年。

The US Department of Energy's National Nuclear Security Administration (NNSA) has said the programme, which was completed once this final bomb had been dismantled, is a year ahead of schedule.

youdao

隶属美国能源部的国家核安全局称，拆除最后一颗炸弹的工作比计划提前一年。

The US Department of Energy's National Nuclear Security Administration (NNSA) has said the programme, which was completed once this final bomb had been dismantled, is a year ahead of schedule.

youdao