So far, the tally of serious nuclear dabblers, past and present, stands at about 30.

到目前为止，认真做过核尝试的(国家数)，算上过去的和现在的，一共有30个。

youdao

So far, the tally of serious nuclear dabblers, past and present, stands at about 30.

到目前为止，认真做过核尝试的(国家数)，算上过去的和现在的，一共有30个。

youdao